45292387 has 4 divisors (see below), whose sum is σ = 51762736. Its totient is φ = 38822040.

The previous prime is 45292363. The next prime is 45292397. The reversal of 45292387 is 78329254.

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

It is a cyclic number.

It is not a de Polignac number, because 45292387 - 2¹⁵ = 45259619 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45292327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3235164 + ... + 3235177.

It is an arithmetic number, because the mean of its divisors is an integer number (12940684).

Almost surely, 2^45292387 is an apocalyptic number.

45292387 is a deficient number, since it is larger than the sum of its proper divisors (6470349).

45292387 is an equidigital number, since it uses as much as digits as its factorization.

45292387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470348.

The product of its digits is 120960, while the sum is 40.

The square root of 45292387 is about 6729.9618869649. The cubic root of 45292387 is about 356.4580304627.

The spelling of 45292387 in words is "forty-five million, two hundred ninety-two thousand, three hundred eighty-seven".