45819816 has 32 divisors (see below), whose sum is σ = 130914240. Its totient is φ = 13091328.

The previous prime is 45819791. The next prime is 45819817. The reversal of 45819816 is 61891854.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (45819817) 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, 136201 + ... + 136536.

It is an arithmetic number, because the mean of its divisors is an integer number (4091070).

Almost surely, 2^45819816 is an apocalyptic number.

It is an amenable number.

45819816 is an abundant number, since it is smaller than the sum of its proper divisors (85094424).

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

45819816 is a wasteful number, since it uses less digits than its factorization.

45819816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272753 (or 272749 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 45819816 is about 6769.0336090169. The cubic root of 45819816 is about 357.8363431198.

The spelling of 45819816 in words is "forty-five million, eight hundred nineteen thousand, eight hundred sixteen".