408998236 has 12 divisors (see below), whose sum is σ = 746866512. Its totient is φ = 195607808.

The previous prime is 408998231. The next prime is 408998243. The reversal of 408998236 is 632899804.

It is a super-2 number, since 2×408998236² = 334559114102223392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 408998236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408998231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222725 + ... + 2222908.

It is an arithmetic number, because the mean of its divisors is an integer number (62238876).

Almost surely, 2^408998236 is an apocalyptic number.

408998236 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

408998236 is a deficient number, since it is larger than the sum of its proper divisors (337868276).

408998236 is a wasteful number, since it uses less digits than its factorization.

408998236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445660 (or 4445658 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 408998236 is about 20223.7048040165. The cubic root of 408998236 is about 742.2903448848.

The spelling of 408998236 in words is "four hundred eight million, nine hundred ninety-eight thousand, two hundred thirty-six".