45879489 has 12 divisors (see below), whose sum is σ = 66329172. Its totient is φ = 30559200.

The previous prime is 45879461. The next prime is 45879497. The reversal of 45879489 is 98497854.

It can be written as a sum of positive squares in 2 ways, for example, as 18662400 + 27217089 = 4320^2 + 5217^2 .

It is not a de Polignac number, because 45879489 - 2¹² = 45875393 is a prime.

It is a super-2 number, since 2×45879489² = 4209855021802242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45879439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18079 + ... + 20459.

It is an arithmetic number, because the mean of its divisors is an integer number (5527431).

Almost surely, 2^45879489 is an apocalyptic number.

It is an amenable number.

45879489 is a deficient number, since it is larger than the sum of its proper divisors (20449683).

45879489 is a wasteful number, since it uses less digits than its factorization.

45879489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528 (or 4525 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 45879489 is about 6773.4399679926. The cubic root of 45879489 is about 357.9916173146.

The spelling of 45879489 in words is "forty-five million, eight hundred seventy-nine thousand, four hundred eighty-nine".