40001505456 has 40 divisors (see below), whose sum is σ = 112731516864. Its totient is φ = 12121668160.

The previous prime is 40001505451. The next prime is 40001505457. The reversal of 40001505456 is 65450510004.

It is not an unprimeable number, because it can be changed into a prime (40001505451) 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, 37879686 + ... + 37880741.

Almost surely, 2^40001505456 is an apocalyptic number.

It is an amenable number.

40001505456 is an abundant number, since it is smaller than the sum of its proper divisors (72730011408).

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

40001505456 is a wasteful number, since it uses less digits than its factorization.

40001505456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75760449 (or 75760443 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 40001505456 in words is "forty billion, one million, five hundred five thousand, four hundred fifty-six".