45501939 has 48 divisors (see below), whose sum is σ = 79271040. Its totient is φ = 25719120.

The previous prime is 45501919. The next prime is 45501943. The reversal of 45501939 is 93910554.

It is not a de Polignac number, because 45501939 - 2⁸ = 45501683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45501919) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 215544 + ... + 215754.

It is an arithmetic number, because the mean of its divisors is an integer number (1651480).

Almost surely, 2^45501939 is an apocalyptic number.

45501939 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

45501939 is a deficient number, since it is larger than the sum of its proper divisors (33769101).

45501939 is a wasteful number, since it uses less digits than its factorization.

45501939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 45501939 is about 6745.5125083273. The cubic root of 45501939 is about 357.0069202811.

The spelling of 45501939 in words is "forty-five million, five hundred one thousand, nine hundred thirty-nine".