402400130234140 has 48 divisors (see below), whose sum is σ = 848513543623200. Its totient is φ = 160299831141632.

The previous prime is 402400130233993. The next prime is 402400130234173. The reversal of 402400130234140 is 41432031004204.

It is a junction number, because it is equal to n+sod(n) for n = 402400130234099 and 402400130234108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37567675 + ... + 47075794.

It is an arithmetic number, because the mean of its divisors is an integer number (17677365492150).

Almost surely, 2^{402400130234140} is an apocalyptic number.

It is an amenable number.

402400130234140 is an abundant number, since it is smaller than the sum of its proper divisors (446113413389060).

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

402400130234140 is a wasteful number, since it uses less digits than its factorization.

402400130234140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84644454 (or 84644452 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 402400130234140 its reverse (41432031004204), we get a palindrome (443832161238344).

The spelling of 402400130234140 in words is "four hundred two trillion, four hundred billion, one hundred thirty million, two hundred thirty-four thousand, one hundred forty".