1402031404240 has 20 divisors (see below), whose sum is σ = 3259723015044. Its totient is φ = 560812561664.

The previous prime is 1402031404217. The next prime is 1402031404307. The reversal of 1402031404240 is 424041302041.

It can be written as a sum of positive squares in 2 ways, for example, as 1036340288064 + 365691116176 = 1018008^2 + 604724^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8762696197 + ... + 8762696356.

Almost surely, 2^{1402031404240} is an apocalyptic number.

1402031404240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402031404240 is an abundant number, since it is smaller than the sum of its proper divisors (1857691610804).

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

1402031404240 is a wasteful number, since it uses less digits than its factorization.

1402031404240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17525392566 (or 17525392560 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1402031404240 its reverse (424041302041), we get a palindrome (1826072706281).

The spelling of 1402031404240 in words is "one trillion, four hundred two billion, thirty-one million, four hundred four thousand, two hundred forty".