409612464 has 120 divisors (see below), whose sum is σ = 1199037840. Its totient is φ = 135364608.

The previous prime is 409612439. The next prime is 409612481. The reversal of 409612464 is 464216904.

409612464 is a `hidden beast` number, since 409 + 6 + 1 + 246 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 532272 + ... + 533040.

It is an arithmetic number, because the mean of its divisors is an integer number (9991982).

Almost surely, 2^409612464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 409612464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599518920).

409612464 is an abundant number, since it is smaller than the sum of its proper divisors (789425376).

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

409612464 is a wasteful number, since it uses less digits than its factorization.

409612464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 409612464 is about 20238.8849495223. The cubic root of 409612464 is about 742.6617462135.

The spelling of 409612464 in words is "four hundred nine million, six hundred twelve thousand, four hundred sixty-four".