45972493 has 8 divisors (see below), whose sum is σ = 52581312. Its totient is φ = 39374016.

The previous prime is 45972481. The next prime is 45972497. The reversal of 45972493 is 39427954.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45972493 - 2¹⁷ = 45841421 is a prime.

It is a super-2 number, since 2×45972493² = 4226940225270098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45972497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14421 + ... + 17317.

It is an arithmetic number, because the mean of its divisors is an integer number (6572664).

Almost surely, 2^45972493 is an apocalyptic number.

It is an amenable number.

45972493 is a deficient number, since it is larger than the sum of its proper divisors (6608819).

45972493 is a wasteful number, since it uses less digits than its factorization.

45972493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171.

The product of its digits is 272160, while the sum is 43.

The square root of 45972493 is about 6780.3018369391. The cubic root of 45972493 is about 358.2333533699.

The spelling of 45972493 in words is "forty-five million, nine hundred seventy-two thousand, four hundred ninety-three".