45989421 has 4 divisors (see below), whose sum is σ = 61319232. Its totient is φ = 30659612.

The previous prime is 45989381. The next prime is 45989459. The reversal of 45989421 is 12498954.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45989421 - 2⁶ = 45989357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45988421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7664901 + ... + 7664906.

It is an arithmetic number, because the mean of its divisors is an integer number (15329808).

Almost surely, 2^45989421 is an apocalyptic number.

It is an amenable number.

45989421 is a deficient number, since it is larger than the sum of its proper divisors (15329811).

45989421 is a wasteful number, since it uses less digits than its factorization.

45989421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15329810.

The product of its digits is 103680, while the sum is 42.

The square root of 45989421 is about 6781.5500440534. The cubic root of 45989421 is about 358.2773175584.

The spelling of 45989421 in words is "forty-five million, nine hundred eighty-nine thousand, four hundred twenty-one".