45224004 has 48 divisors (see below), whose sum is σ = 121791488. Its totient is φ = 12793248.

The previous prime is 45223993. The next prime is 45224017. The reversal of 45224004 is 40042254.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6039 + ... + 11265.

Almost surely, 2^45224004 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 45224004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60895744).

45224004 is an abundant number, since it is smaller than the sum of its proper divisors (76567484).

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

45224004 is a wasteful number, since it uses less digits than its factorization.

45224004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5342 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 45224004 is about 6724.8794784739. The cubic root of 45224004 is about 356.2785452042.

Adding to 45224004 its reverse (40042254), we get a palindrome (85266258).

The spelling of 45224004 in words is "forty-five million, two hundred twenty-four thousand, four".