409440396 has 12 divisors (see below), whose sum is σ = 955360952. Its totient is φ = 136480128.

The previous prime is 409440389. The next prime is 409440403. The reversal of 409440396 is 693044904.

It is an interprime number because it is at equal distance from previous prime (409440389) and next prime (409440403).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17060005 + ... + 17060028.

Almost surely, 2^409440396 is an apocalyptic number.

It is an amenable number.

409440396 is an abundant number, since it is smaller than the sum of its proper divisors (545920556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409440396 is a wasteful number, since it uses less digits than its factorization.

409440396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34120040 (or 34120038 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 409440396 is about 20234.6335771123. The cubic root of 409440396 is about 742.5577404110.

The spelling of 409440396 in words is "four hundred nine million, four hundred forty thousand, three hundred ninety-six".