45408985 has 4 divisors (see below), whose sum is σ = 54490788. Its totient is φ = 36327184.

The previous prime is 45408971. The next prime is 45408991. The reversal of 45408985 is 58980454.

It is a happy number.

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 22099401 + 23309584 = 4701^2 + 4828^2 .

It is a cyclic number.

It is not a de Polignac number, because 45408985 - 2¹¹ = 45406937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4540894 + ... + 4540903.

It is an arithmetic number, because the mean of its divisors is an integer number (13622697).

Almost surely, 2^45408985 is an apocalyptic number.

It is an amenable number.

45408985 is a deficient number, since it is larger than the sum of its proper divisors (9081803).

45408985 is an equidigital number, since it uses as much as digits as its factorization.

45408985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081802.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 45408985 is about 6738.6189237855. The cubic root of 45408985 is about 356.7636497360.

The spelling of 45408985 in words is "forty-five million, four hundred eight thousand, nine hundred eighty-five".