45407544 has 128 divisors (see below), whose sum is σ = 148055040. Its totient is φ = 11261952.

The previous prime is 45407513. The next prime is 45407597. The reversal of 45407544 is 44570454.

It is a super-2 number, since 2×45407544² = 4123690104223872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36517 + ... + 37739.

It is an arithmetic number, because the mean of its divisors is an integer number (1156680).

Almost surely, 2^45407544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45407544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74027520).

45407544 is an abundant number, since it is smaller than the sum of its proper divisors (102647496).

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

45407544 is a wasteful number, since it uses less digits than its factorization.

45407544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 33.

The square root of 45407544 is about 6738.5120019185. The cubic root of 45407544 is about 356.7598758730.

Adding to 45407544 its reverse (44570454), we get a palindrome (89977998).

The spelling of 45407544 in words is "forty-five million, four hundred seven thousand, five hundred forty-four".