409169950 has 48 divisors (see below), whose sum is σ = 872087040. Its totient is φ = 139914720.

The previous prime is 409169933. The next prime is 409169951. The reversal of 409169950 is 59961904.

It is a junction number, because it is equal to n+sod(n) for n = 409169897 and 409169906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409169951) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 152319 + ... + 154981.

It is an arithmetic number, because the mean of its divisors is an integer number (18168480).

Almost surely, 2^409169950 is an apocalyptic number.

409169950 is an abundant number, since it is smaller than the sum of its proper divisors (462917090).

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

409169950 is a wasteful number, since it uses less digits than its factorization.

409169950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 409169950 is about 20227.9497230935. The cubic root of 409169950 is about 742.3942115190.

The spelling of 409169950 in words is "four hundred nine million, one hundred sixty-nine thousand, nine hundred fifty".