400120250505304 has 64 divisors (see below), whose sum is σ = 857690117444160. Its totient is φ = 171422196203520.

The previous prime is 400120250505293. The next prime is 400120250505307. The reversal of 400120250505304 is 403505052021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400120250505307) 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, 5629039044 + ... + 5629110124.

It is an arithmetic number, because the mean of its divisors is an integer number (13401408085065).

Almost surely, 2^{400120250505304} is an apocalyptic number.

It is an amenable number.

400120250505304 is an abundant number, since it is smaller than the sum of its proper divisors (457569866938856).

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

400120250505304 is a wasteful number, since it uses less digits than its factorization.

400120250505304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103628 (or 103624 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 400120250505304 in words is "four hundred trillion, one hundred twenty billion, two hundred fifty million, five hundred five thousand, three hundred four".