40475644 has 12 divisors (see below), whose sum is σ = 77271768. Its totient is φ = 18398000.

The previous prime is 40475629. The next prime is 40475663. The reversal of 40475644 is 44657404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459907 + ... + 459994.

It is an arithmetic number, because the mean of its divisors is an integer number (6439314).

Almost surely, 2^40475644 is an apocalyptic number.

40475644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40475644 is a deficient number, since it is larger than the sum of its proper divisors (36796124).

40475644 is a wasteful number, since it uses less digits than its factorization.

40475644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919916 (or 919914 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 40475644 is about 6362.0471548080. The cubic root of 40475644 is about 343.3454178254.

The spelling of 40475644 in words is "forty million, four hundred seventy-five thousand, six hundred forty-four".