40813772 has 6 divisors (see below), whose sum is σ = 71424108. Its totient is φ = 20406884.

The previous prime is 40813771. The next prime is 40813777. The reversal of 40813772 is 27731804.

It is a happy number.

40813772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40813771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101718 + ... + 5101725.

It is an arithmetic number, because the mean of its divisors is an integer number (11904018).

Almost surely, 2^40813772 is an apocalyptic number.

It is an amenable number.

40813772 is a deficient number, since it is larger than the sum of its proper divisors (30610336).

40813772 is a wasteful number, since it uses less digits than its factorization.

40813772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10203447 (or 10203445 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 40813772 is about 6388.5657232277. The cubic root of 40813772 is about 344.2988546769.

The spelling of 40813772 in words is "forty million, eight hundred thirteen thousand, seven hundred seventy-two".