45438464 has 20 divisors (see below), whose sum is σ = 90789204. Its totient is φ = 22718976.

The previous prime is 45438461. The next prime is 45438499. The reversal of 45438464 is 46483454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43862 + ... + 44885.

Almost surely, 2^45438464 is an apocalyptic number.

It is an amenable number.

45438464 is a deficient number, since it is larger than the sum of its proper divisors (45350740).

45438464 is an frugal number, since it uses more digits than its factorization.

45438464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88765 (or 88749 counting only the distinct ones).

The product of its digits is 184320, while the sum is 38.

The square root of 45438464 is about 6740.8058865391. The cubic root of 45438464 is about 356.8408353458.

The spelling of 45438464 in words is "forty-five million, four hundred thirty-eight thousand, four hundred sixty-four".