409723652 has 48 divisors (see below), whose sum is σ = 800282112. Its totient is φ = 182269440.

The previous prime is 409723637. The next prime is 409723703. The reversal of 409723652 is 256327904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697703 + ... + 698289.

It is an arithmetic number, because the mean of its divisors is an integer number (16672544).

Almost surely, 2^409723652 is an apocalyptic number.

It is an amenable number.

409723652 is a deficient number, since it is larger than the sum of its proper divisors (390558460).

409723652 is a wasteful number, since it uses less digits than its factorization.

409723652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 409723652 is about 20241.6316535995. The cubic root of 409723652 is about 742.7289378569.

The spelling of 409723652 in words is "four hundred nine million, seven hundred twenty-three thousand, six hundred fifty-two".