40256001 has 8 divisors (see below), whose sum is σ = 59638560. Its totient is φ = 26837316.

The previous prime is 40255997. The next prime is 40256009. The reversal of 40256001 is 10065204.

It is a happy number.

40256001 is a `hidden beast` number, since 40 + 25 + 600 + 1 = 666.

It is not a de Polignac number, because 40256001 - 2² = 40255997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40256009) 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, 745455 + ... + 745508.

It is an arithmetic number, because the mean of its divisors is an integer number (7454820).

Almost surely, 2^40256001 is an apocalyptic number.

It is an amenable number.

40256001 is a deficient number, since it is larger than the sum of its proper divisors (19382559).

40256001 is a wasteful number, since it uses less digits than its factorization.

40256001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490972 (or 1490966 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40256001 is about 6344.7616976526. The cubic root of 40256001 is about 342.7232309629.

The spelling of 40256001 in words is "forty million, two hundred fifty-six thousand, one".