45561630 has 32 divisors (see below), whose sum is σ = 112877568. Its totient is φ = 11757600.

The previous prime is 45561617. The next prime is 45561671. The reversal of 45561630 is 3616554.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23566 + ... + 25425.

It is an arithmetic number, because the mean of its divisors is an integer number (3527424).

Almost surely, 2^45561630 is an apocalyptic number.

45561630 is an abundant number, since it is smaller than the sum of its proper divisors (67315938).

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

45561630 is a wasteful number, since it uses less digits than its factorization.

45561630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49032.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 45561630 is about 6749.9355552479. The cubic root of 45561630 is about 357.1629633633.

The spelling of 45561630 in words is "forty-five million, five hundred sixty-one thousand, six hundred thirty".