40130645406 has 32 divisors (see below), whose sum is σ = 82444238208. Its totient is φ = 13013177760.

The previous prime is 40130645371. The next prime is 40130645447. The reversal of 40130645406 is 60454603104.

It is a super-2 number, since 2×40130645406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1829701 + ... + 1851503.

It is an arithmetic number, because the mean of its divisors is an integer number (2576382444).

Almost surely, 2^40130645406 is an apocalyptic number.

40130645406 is an abundant number, since it is smaller than the sum of its proper divisors (42313592802).

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

40130645406 is a wasteful number, since it uses less digits than its factorization.

40130645406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30136.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 40130645406 in words is "forty billion, one hundred thirty million, six hundred forty-five thousand, four hundred six".