45215604 has 48 divisors (see below), whose sum is σ = 133974400. Its totient is φ = 12918528.

The previous prime is 45215587. The next prime is 45215609. The reversal of 45215604 is 40651254.

45215604 is a `hidden beast` number, since 4 + 52 + 1 + 5 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45215609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29149 + ... + 30660.

Almost surely, 2^45215604 is an apocalyptic number.

It is an amenable number.

45215604 is an abundant number, since it is smaller than the sum of its proper divisors (88758796).

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

45215604 is a wasteful number, since it uses less digits than its factorization.

45215604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59829 (or 59821 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 45215604 is about 6724.2549029614. The cubic root of 45215604 is about 356.2564852005.

Adding to 45215604 its reverse (40651254), we get a palindrome (85866858).

The spelling of 45215604 in words is "forty-five million, two hundred fifteen thousand, six hundred four".