45619638 has 16 divisors (see below), whose sum is σ = 91442736. Its totient is φ = 15172640.

The previous prime is 45619633. The next prime is 45619663. The reversal of 45619638 is 83691654.

45619638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45619638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45619633) 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 7 ways as a sum of consecutive naturals, for example, 5481 + ... + 11012.

It is an arithmetic number, because the mean of its divisors is an integer number (5715171).

Almost surely, 2^45619638 is an apocalyptic number.

45619638 is an abundant number, since it is smaller than the sum of its proper divisors (45823098).

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

45619638 is a wasteful number, since it uses less digits than its factorization.

45619638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16959.

The product of its digits is 155520, while the sum is 42.

The square root of 45619638 is about 6754.2311183435. The cubic root of 45619638 is about 357.3144762533.

The spelling of 45619638 in words is "forty-five million, six hundred nineteen thousand, six hundred thirty-eight".