40400608 has 12 divisors (see below), whose sum is σ = 79538760. Its totient is φ = 20200288.

The previous prime is 40400603. The next prime is 40400713. The reversal of 40400608 is 80600404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631228 + ... + 631291.

It is an arithmetic number, because the mean of its divisors is an integer number (6628230).

Almost surely, 2^40400608 is an apocalyptic number.

It is an amenable number.

40400608 is a deficient number, since it is larger than the sum of its proper divisors (39138152).

40400608 is a wasteful number, since it uses less digits than its factorization.

40400608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262529 (or 1262521 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 40400608 is about 6356.1472607233. The cubic root of 40400608 is about 343.1331156349.

The spelling of 40400608 in words is "forty million, four hundred thousand, six hundred eight".