45438928 has 10 divisors (see below), whose sum is σ = 88037954. Its totient is φ = 22719456.

The previous prime is 45438907. The next prime is 45438929. The reversal of 45438928 is 82983454.

It can be written as a sum of positive squares in only one way, i.e., 41062464 + 4376464 = 6408^2 + 2092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1419951 + ... + 1419982.

Almost surely, 2^45438928 is an apocalyptic number.

It is an amenable number.

45438928 is a deficient number, since it is larger than the sum of its proper divisors (42599026).

45438928 is a wasteful number, since it uses less digits than its factorization.

45438928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839941 (or 2839935 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 45438928 is about 6740.8403037010. The cubic root of 45438928 is about 356.8420499818.

It can be divided in two parts, 4 and 5438928, that multiplied together give a palindrome (21755712).

The spelling of 45438928 in words is "forty-five million, four hundred thirty-eight thousand, nine hundred twenty-eight".