1403140156240 has 80 divisors (see below), whose sum is σ = 3344597963280. Its totient is φ = 547119779840.

The previous prime is 1403140156213. The next prime is 1403140156247. The reversal of 1403140156240 is 426510413041.

It can be written as a sum of positive squares in 8 ways, for example, as 136894080064 + 1266246076176 = 369992^2 + 1125276^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1403140156240² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403140156247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3857082 + ... + 4205158.

It is an arithmetic number, because the mean of its divisors is an integer number (41807474541).

Almost surely, 2^{1403140156240} is an apocalyptic number.

1403140156240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1403140156240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672298981640).

1403140156240 is an abundant number, since it is smaller than the sum of its proper divisors (1941457807040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1403140156240 is a wasteful number, since it uses less digits than its factorization.

1403140156240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349360 (or 349354 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 1403140156240 its reverse (426510413041), we get a palindrome (1829650569281).

The spelling of 1403140156240 in words is "one trillion, four hundred three billion, one hundred forty million, one hundred fifty-six thousand, two hundred forty".