45420504 has 32 divisors (see below), whose sum is σ = 113840640. Its totient is φ = 15101600.

The previous prime is 45420499. The next prime is 45420509. The reversal of 45420504 is 40502454.

It is an interprime number because it is at equal distance from previous prime (45420499) and next prime (45420509).

It is a super-2 number, since 2×45420504² = 4126044367228032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45420509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8149 + ... + 12539.

It is an arithmetic number, because the mean of its divisors is an integer number (3557520).

Almost surely, 2^45420504 is an apocalyptic number.

It is an amenable number.

45420504 is an abundant number, since it is smaller than the sum of its proper divisors (68420136).

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

45420504 is a wasteful number, since it uses less digits than its factorization.

45420504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831 (or 4827 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 45420504 is about 6739.4735699459. The cubic root of 45420504 is about 356.7938141996.

Adding to 45420504 its reverse (40502454), we get a palindrome (85922958).

The spelling of 45420504 in words is "forty-five million, four hundred twenty thousand, five hundred four".