40400464652 has 24 divisors (see below), whose sum is σ = 71376382224. Its totient is φ = 20007291392.

The previous prime is 40400464651. The next prime is 40400464723. The reversal of 40400464652 is 25646400404.

It is a super-2 number, since 2×40400464652² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40400464651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3648308 + ... + 3659364.

It is an arithmetic number, because the mean of its divisors is an integer number (2974015926).

Almost surely, 2^40400464652 is an apocalyptic number.

It is an amenable number.

40400464652 is a deficient number, since it is larger than the sum of its proper divisors (30975917572).

40400464652 is a wasteful number, since it uses less digits than its factorization.

40400464652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19705 (or 19703 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 40400464652 in words is "forty billion, four hundred million, four hundred sixty-four thousand, six hundred fifty-two".