45729930 has 32 divisors (see below), whose sum is σ = 110168064. Its totient is φ = 12148416.

The previous prime is 45729923. The next prime is 45729947. The reversal of 45729930 is 3992754.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon 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, 5559 + ... + 11061.

It is an arithmetic number, because the mean of its divisors is an integer number (3442752).

Almost surely, 2^45729930 is an apocalyptic number.

45729930 is an abundant number, since it is smaller than the sum of its proper divisors (64438134).

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

45729930 is a wasteful number, since it uses less digits than its factorization.

45729930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 45729930 is about 6762.3908493964. The cubic root of 45729930 is about 357.6021974601.

The spelling of 45729930 in words is "forty-five million, seven hundred twenty-nine thousand, nine hundred thirty".