409561384 has 16 divisors (see below), whose sum is σ = 784267200. Its totient is φ = 200423472.

The previous prime is 409561379. The next prime is 409561387. The reversal of 409561384 is 483165904.

It is not an unprimeable number, because it can be changed into a prime (409561387) 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, 544254 + ... + 545005.

It is an arithmetic number, because the mean of its divisors is an integer number (49016700).

Almost surely, 2^409561384 is an apocalyptic number.

It is an amenable number.

409561384 is a deficient number, since it is larger than the sum of its proper divisors (374705816).

409561384 is a wasteful number, since it uses less digits than its factorization.

409561384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089312 (or 1089308 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 409561384 is about 20237.6229829494. The cubic root of 409561384 is about 742.6308741557.

The spelling of 409561384 in words is "four hundred nine million, five hundred sixty-one thousand, three hundred eighty-four".