40477768 has 8 divisors (see below), whose sum is σ = 75895830. Its totient is φ = 20238880.

The previous prime is 40477721. The next prime is 40477777. The reversal of 40477768 is 86777404.

It can be written as a sum of positive squares in only one way, i.e., 24621444 + 15856324 = 4962^2 + 3982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2529853 + ... + 2529868.

Almost surely, 2^40477768 is an apocalyptic number.

It is an amenable number.

40477768 is a deficient number, since it is larger than the sum of its proper divisors (35418062).

40477768 is a wasteful number, since it uses less digits than its factorization.

40477768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059727 (or 5059723 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 40477768 is about 6362.2140800196. The cubic root of 40477768 is about 343.3514235187.

The spelling of 40477768 in words is "forty million, four hundred seventy-seven thousand, seven hundred sixty-eight".