45640775 has 6 divisors (see below), whose sum is σ = 56594592. Its totient is φ = 36512600.

The previous prime is 45640729. The next prime is 45640811. The reversal of 45640775 is 57704654.

45640775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45640775 - 2¹⁴ = 45624391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 912791 + ... + 912840.

It is an arithmetic number, because the mean of its divisors is an integer number (9432432).

Almost surely, 2^45640775 is an apocalyptic number.

45640775 is a deficient number, since it is larger than the sum of its proper divisors (10953817).

45640775 is a wasteful number, since it uses less digits than its factorization.

45640775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825641 (or 1825636 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 45640775 is about 6755.7956600241. The cubic root of 45640775 is about 357.3696527100.

The spelling of 45640775 in words is "forty-five million, six hundred forty thousand, seven hundred seventy-five".