409229164 has 24 divisors (see below), whose sum is σ = 731931200. Its totient is φ = 200171088.

The previous prime is 409229153. The next prime is 409229173. The reversal of 409229164 is 461922904.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3754342 + ... + 3754450.

Almost surely, 2^409229164 is an apocalyptic number.

It is an amenable number.

409229164 is a deficient number, since it is larger than the sum of its proper divisors (322702036).

409229164 is an frugal number, since it uses more digits than its factorization.

409229164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 409229164 is about 20229.4133380086. The cubic root of 409229164 is about 742.4300222381.

It can be divided in two parts, 40922 and 9164, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 409229164 in words is "four hundred nine million, two hundred twenty-nine thousand, one hundred sixty-four".