407987400738 has 16 divisors (see below), whose sum is σ = 820533322080. Its totient is φ = 135236046816.

The previous prime is 407987400727. The next prime is 407987400809. The reversal of 407987400738 is 837004789704.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189937195 + ... + 189939342.

It is an arithmetic number, because the mean of its divisors is an integer number (51283332630).

Almost surely, 2^407987400738 is an apocalyptic number.

407987400738 is an abundant number, since it is smaller than the sum of its proper divisors (412545921342).

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

407987400738 is a wasteful number, since it uses less digits than its factorization.

407987400738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379876721.

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 407987400738 in words is "four hundred seven billion, nine hundred eighty-seven million, four hundred thousand, seven hundred thirty-eight".