408840089 has 32 divisors (see below), whose sum is σ = 506004480. Its totient is φ = 322403328.

The previous prime is 408840079. The next prime is 408840109. The reversal of 408840089 is 980048804.

It is a cyclic number.

It is not a de Polignac number, because 408840089 - 2⁴ = 408840073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (408840079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1475819 + ... + 1476095.

It is an arithmetic number, because the mean of its divisors is an integer number (15812640).

Almost surely, 2^408840089 is an apocalyptic number.

It is an amenable number.

408840089 is a deficient number, since it is larger than the sum of its proper divisors (97164391).

408840089 is a wasteful number, since it uses less digits than its factorization.

408840089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 408840089 is about 20219.7944846133. The cubic root of 408840089 is about 742.1946589587.

The spelling of 408840089 in words is "four hundred eight million, eight hundred forty thousand, eighty-nine".