1401713240 has 64 divisors (see below), whose sum is σ = 3386525760. Its totient is φ = 520253440.

The previous prime is 1401713197. The next prime is 1401713263. The reversal of 1401713240 is 423171041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33764 + ... + 62796.

It is an arithmetic number, because the mean of its divisors is an integer number (52914465).

Almost surely, 2^1401713240 is an apocalyptic number.

1401713240 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 1401713240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693262880).

1401713240 is an abundant number, since it is smaller than the sum of its proper divisors (1984812520).

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

1401713240 is a wasteful number, since it uses less digits than its factorization.

1401713240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29132 (or 29128 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1401713240 is about 37439.4610003937. The cubic root of 1401713240 is about 1119.1450852654.

Adding to 1401713240 its reverse (423171041), we get a palindrome (1824884281).

The spelling of 1401713240 in words is "one billion, four hundred one million, seven hundred thirteen thousand, two hundred forty".