400734095064 has 64 divisors (see below), whose sum is σ = 1017283898880. Its totient is φ = 131523168000.

The previous prime is 400734095063. The next prime is 400734095081. The reversal of 400734095064 is 460590437004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400734095063) 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, 1142229 + ... + 1451259.

It is an arithmetic number, because the mean of its divisors is an integer number (15895060920).

Almost surely, 2^400734095064 is an apocalyptic number.

It is an amenable number.

400734095064 is an abundant number, since it is smaller than the sum of its proper divisors (616549803816).

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

400734095064 is a wasteful number, since it uses less digits than its factorization.

400734095064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309872 (or 309868 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 400734095064 in words is "four hundred billion, seven hundred thirty-four million, ninety-five thousand, sixty-four".