408898139 has 8 divisors (see below), whose sum is σ = 440510112. Its totient is φ = 377308800.

The previous prime is 408898123. The next prime is 408898141. The reversal of 408898139 is 931898804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408898139 - 2⁴ = 408898123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408898939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61187 + ... + 67539.

It is an arithmetic number, because the mean of its divisors is an integer number (55063764).

Almost surely, 2^408898139 is an apocalyptic number.

408898139 is a deficient number, since it is larger than the sum of its proper divisors (31611973).

408898139 is a wasteful number, since it uses less digits than its factorization.

408898139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11317.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 408898139 is about 20221.2299081930. The cubic root of 408898139 is about 742.2297846408.

The spelling of 408898139 in words is "four hundred eight million, eight hundred ninety-eight thousand, one hundred thirty-nine".