40407640408 has 16 divisors (see below), whose sum is σ = 80221051080. Its totient is φ = 19015360128.

The previous prime is 40407640387. The next prime is 40407640409. The reversal of 40407640408 is 80404670404.

40407640408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40407640409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148557366 + ... + 148557637.

Almost surely, 2^40407640408 is an apocalyptic number.

It is an amenable number.

40407640408 is a deficient number, since it is larger than the sum of its proper divisors (39813410672).

40407640408 is a wasteful number, since it uses less digits than its factorization.

40407640408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297115026 (or 297115022 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 40407640408 in words is "forty billion, four hundred seven million, six hundred forty thousand, four hundred eight".