40003406667 has 24 divisors (see below), whose sum is σ = 66678520064. Its totient is φ = 22637152944.

The previous prime is 40003406629. The next prime is 40003406687. The reversal of 40003406667 is 76660430004.

It is not a de Polignac number, because 40003406667 - 2¹⁴ = 40003390283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40003406687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3075913 + ... + 3088890.

Almost surely, 2^40003406667 is an apocalyptic number.

40003406667 is a deficient number, since it is larger than the sum of its proper divisors (26675113397).

40003406667 is a wasteful number, since it uses less digits than its factorization.

40003406667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6164919 (or 6164916 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 40003406667 in words is "forty billion, three million, four hundred six thousand, six hundred sixty-seven".