40267304644 has 24 divisors (see below), whose sum is σ = 81364868480. Its totient is φ = 17079503616.

The previous prime is 40267304593. The next prime is 40267304669. The reversal of 40267304644 is 44640376204.

It is a junction number, because it is equal to n+sod(n) for n = 40267304597 and 40267304606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7410264 + ... + 7415695.

Almost surely, 2^40267304644 is an apocalyptic number.

It is an amenable number.

40267304644 is an abundant number, since it is smaller than the sum of its proper divisors (41097563836).

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

40267304644 is a wasteful number, since it uses less digits than its factorization.

40267304644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14826067 (or 14826065 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 40267304644 in words is "forty billion, two hundred sixty-seven million, three hundred four thousand, six hundred forty-four".