45251994 has 32 divisors (see below), whose sum is σ = 99999360. Its totient is φ = 13578752.

The previous prime is 45251993. The next prime is 45252013. The reversal of 45251994 is 49915254.

It is not an unprimeable number, because it can be changed into a prime (45251993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7299 + ... + 11990.

It is an arithmetic number, because the mean of its divisors is an integer number (3124980).

Almost surely, 2^45251994 is an apocalyptic number.

45251994 is an abundant number, since it is smaller than the sum of its proper divisors (54747366).

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

45251994 is a wasteful number, since it uses less digits than its factorization.

45251994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19334.

The product of its digits is 64800, while the sum is 39.

The square root of 45251994 is about 6726.9602347569. The cubic root of 45251994 is about 356.3520325780.

The spelling of 45251994 in words is "forty-five million, two hundred fifty-one thousand, nine hundred ninety-four".