40472788 has 6 divisors (see below), whose sum is σ = 70827386. Its totient is φ = 20236392.

The previous prime is 40472779. The next prime is 40472791. The reversal of 40472788 is 88727404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38787984 + 1684804 = 6228^2 + 1298^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40472788.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5059095 + ... + 5059102.

Almost surely, 2^40472788 is an apocalyptic number.

It is an amenable number.

40472788 is a deficient number, since it is larger than the sum of its proper divisors (30354598).

40472788 is a wasteful number, since it uses less digits than its factorization.

40472788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118201 (or 10118199 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 40472788 is about 6361.8226947943. The cubic root of 40472788 is about 343.3373420422.

The spelling of 40472788 in words is "forty million, four hundred seventy-two thousand, seven hundred eighty-eight".