45405944 has 16 divisors (see below), whose sum is σ = 85218000. Its totient is φ = 22681152.

The previous prime is 45405889. The next prime is 45405949. The reversal of 45405944 is 44950454.

It is a super-2 number, since 2×45405944² = 4123399501062272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45405949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9164 + ... + 13220.

It is an arithmetic number, because the mean of its divisors is an integer number (5326125).

Almost surely, 2^45405944 is an apocalyptic number.

It is an amenable number.

45405944 is a deficient number, since it is larger than the sum of its proper divisors (39812056).

45405944 is a wasteful number, since it uses less digits than its factorization.

45405944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462 (or 5458 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 45405944 is about 6738.3932803006. The cubic root of 45405944 is about 356.7556855083.

The spelling of 45405944 in words is "forty-five million, four hundred five thousand, nine hundred forty-four".