40007773404 has 18 divisors (see below), whose sum is σ = 101130760640. Its totient is φ = 13335924456.

The previous prime is 40007773381. The next prime is 40007773411. The reversal of 40007773404 is 40437770004.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1111327039 = 40007773404 / (4 + 0 + 0 + 0 + 7 + 7 + 7 + 3 + 4 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555663484 + ... + 555663555.

Almost surely, 2^40007773404 is an apocalyptic number.

It is an amenable number.

40007773404 is an abundant number, since it is smaller than the sum of its proper divisors (61122987236).

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

40007773404 is a wasteful number, since it uses less digits than its factorization.

40007773404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111327049 (or 1111327044 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The spelling of 40007773404 in words is "forty billion, seven million, seven hundred seventy-three thousand, four hundred four".