408249459 has 6 divisors (see below), whose sum is σ = 589693676. Its totient is φ = 272166300.

The previous prime is 408249449. The next prime is 408249469. The reversal of 408249459 is 954942804.

It is an interprime number because it is at equal distance from previous prime (408249449) and next prime (408249469).

It is not a de Polignac number, because 408249459 - 2⁵ = 408249427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408249419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22680517 + ... + 22680534.

Almost surely, 2^408249459 is an apocalyptic number.

408249459 is a deficient number, since it is larger than the sum of its proper divisors (181444217).

408249459 is a wasteful number, since it uses less digits than its factorization.

408249459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45361057 (or 45361054 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 408249459 is about 20205.1839635278. The cubic root of 408249459 is about 741.8370833801.

The spelling of 408249459 in words is "four hundred eight million, two hundred forty-nine thousand, four hundred fifty-nine".