45215646 has 16 divisors (see below), whose sum is σ = 103350144. Its totient is φ = 12918744.

The previous prime is 45215641. The next prime is 45215659. The reversal of 45215646 is 64651254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45215641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538240 + ... + 538323.

It is an arithmetic number, because the mean of its divisors is an integer number (6459384).

Almost surely, 2^45215646 is an apocalyptic number.

45215646 is an abundant number, since it is smaller than the sum of its proper divisors (58134498).

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

45215646 is a wasteful number, since it uses less digits than its factorization.

45215646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076575.

The product of its digits is 28800, while the sum is 33.

The square root of 45215646 is about 6724.2580259832. The cubic root of 45215646 is about 356.2565955073.

The spelling of 45215646 in words is "forty-five million, two hundred fifteen thousand, six hundred forty-six".