45921369 has 16 divisors (see below), whose sum is σ = 69818112. Its totient is φ = 26596608.

The previous prime is 45921361. The next prime is 45921383. The reversal of 45921369 is 96312954.

It is not a de Polignac number, because 45921369 - 2³ = 45921361 is a prime.

It is a super-2 number, since 2×45921369² = 4217544261668322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (45921361) 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, 33969 + ... + 35294.

It is an arithmetic number, because the mean of its divisors is an integer number (4363632).

Almost surely, 2^45921369 is an apocalyptic number.

It is an amenable number.

45921369 is a deficient number, since it is larger than the sum of its proper divisors (23896743).

45921369 is a wasteful number, since it uses less digits than its factorization.

45921369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69296.

The product of its digits is 58320, while the sum is 39.

The square root of 45921369 is about 6776.5307495798. The cubic root of 45921369 is about 358.1005122309.

The spelling of 45921369 in words is "forty-five million, nine hundred twenty-one thousand, three hundred sixty-nine".