45129994 has 32 divisors (see below), whose sum is σ = 84583296. Its totient is φ = 17582400.

The previous prime is 45129989. The next prime is 45130009. The reversal of 45129994 is 49992154.

It is a self number, because there is not a number n which added to its sum of digits gives 45129994.

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, 10344 + ... + 14044.

It is an arithmetic number, because the mean of its divisors is an integer number (2643228).

Almost surely, 2^45129994 is an apocalyptic number.

45129994 is a deficient number, since it is larger than the sum of its proper divisors (39453302).

45129994 is a wasteful number, since it uses less digits than its factorization.

45129994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790.

The product of its digits is 116640, while the sum is 43.

The square root of 45129994 is about 6717.8861258583. The cubic root of 45129994 is about 356.0315010210.

The spelling of 45129994 in words is "forty-five million, one hundred twenty-nine thousand, nine hundred ninety-four".