409601550 has 24 divisors (see below), whose sum is σ = 1015812216. Its totient is φ = 109227040.

The previous prime is 409601527. The next prime is 409601551. The reversal of 409601550 is 55106904.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409601551) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1365189 + ... + 1365488.

It is an arithmetic number, because the mean of its divisors is an integer number (42325509).

Almost surely, 2^409601550 is an apocalyptic number.

409601550 is an abundant number, since it is smaller than the sum of its proper divisors (606210666).

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

409601550 is a wasteful number, since it uses less digits than its factorization.

409601550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730692 (or 2730687 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 409601550 is about 20238.6153182474. The cubic root of 409601550 is about 742.6551501559.

The spelling of 409601550 in words is "four hundred nine million, six hundred one thousand, five hundred fifty".