409622 has 8 divisors (see below), whose sum is σ = 620400. Its totient is φ = 202824.

The previous prime is 409609. The next prime is 409639. The reversal of 409622 is 226904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

409622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (77550).

2⁴⁰⁹⁶²² is an apocalyptic number.

409622 is a deficient number, since it is larger than the sum of its proper divisors (210778).

409622 is a wasteful number, since it uses less digits than its factorization.

409622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 409622 is about 640.0171872692. The cubic root of 409622 is about 74.2667509358.

The spelling of 409622 in words is "four hundred nine thousand, six hundred twenty-two".