45492385 has 4 divisors (see below), whose sum is σ = 54590868. Its totient is φ = 36393904.

The previous prime is 45492379. The next prime is 45492401. The reversal of 45492385 is 58329454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15374241 + 30118144 = 3921^2 + 5488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45492385 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4549234 + ... + 4549243.

It is an arithmetic number, because the mean of its divisors is an integer number (13647717).

Almost surely, 2^45492385 is an apocalyptic number.

It is an amenable number.

45492385 is a deficient number, since it is larger than the sum of its proper divisors (9098483).

45492385 is an equidigital number, since it uses as much as digits as its factorization.

45492385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098482.

The product of its digits is 172800, while the sum is 40.

The square root of 45492385 is about 6744.8042966420. The cubic root of 45492385 is about 356.9819317279.

The spelling of 45492385 in words is "forty-five million, four hundred ninety-two thousand, three hundred eighty-five".