45519420 has 48 divisors (see below), whose sum is σ = 129554208. Its totient is φ = 11938560.

The previous prime is 45519401. The next prime is 45519427. The reversal of 45519420 is 2491554.

45519420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45519427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2559 + ... + 9878.

It is an arithmetic number, because the mean of its divisors is an integer number (2699046).

Almost surely, 2^45519420 is an apocalyptic number.

It is an amenable number.

45519420 is an abundant number, since it is smaller than the sum of its proper divisors (84034788).

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

45519420 is a wasteful number, since it uses less digits than its factorization.

45519420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12510 (or 12508 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 45519420 is about 6746.8081342217. The cubic root of 45519420 is about 357.0526329040.

The spelling of 45519420 in words is "forty-five million, five hundred nineteen thousand, four hundred twenty".