44390973 has 32 divisors (see below), whose sum is σ = 68866560. Its totient is φ = 25151040.

The previous prime is 44390971. The next prime is 44390993. The reversal of 44390973 is 37909344.

It is not a de Polignac number, because 44390973 - 2¹ = 44390971 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44390971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51615 + ... + 52467.

It is an arithmetic number, because the mean of its divisors is an integer number (2152080).

Almost surely, 2^44390973 is an apocalyptic number.

It is an amenable number.

44390973 is a deficient number, since it is larger than the sum of its proper divisors (24475587).

44390973 is a wasteful number, since it uses less digits than its factorization.

44390973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 44390973 is about 6662.6551013841. The cubic root of 44390973 is about 354.0774113321.

The spelling of 44390973 in words is "forty-four million, three hundred ninety thousand, nine hundred seventy-three".