40673444 has 24 divisors (see below), whose sum is σ = 81574080. Its totient is φ = 17382816.

The previous prime is 40673443. The next prime is 40673447. The reversal of 40673444 is 44437604.

It is a super-2 number, since 2×40673444² = 3308658093642272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40673444.

It is not an unprimeable number, because it can be changed into a prime (40673441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9287 + ... + 12945.

It is an arithmetic number, because the mean of its divisors is an integer number (3398920).

Almost surely, 2^40673444 is an apocalyptic number.

It is an amenable number.

40673444 is an abundant number, since it is smaller than the sum of its proper divisors (40900636).

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

40673444 is a wasteful number, since it uses less digits than its factorization.

40673444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067 (or 4065 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 40673444 is about 6377.5735197644. The cubic root of 40673444 is about 343.9038062566.

The spelling of 40673444 in words is "forty million, six hundred seventy-three thousand, four hundred forty-four".