404421622 has 32 divisors (see below), whose sum is σ = 693753984. Its totient is φ = 175156800.

The previous prime is 404421541. The next prime is 404421623. The reversal of 404421622 is 226124404.

It is a happy number.

It is a super-2 number, since 2×404421622² = 327113696682221768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404421623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33573 + ... + 43999.

It is an arithmetic number, because the mean of its divisors is an integer number (21679812).

Almost surely, 2^404421622 is an apocalyptic number.

404421622 is a deficient number, since it is larger than the sum of its proper divisors (289332362).

404421622 is a wasteful number, since it uses less digits than its factorization.

404421622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 404421622 is about 20110.2367464931. The cubic root of 404421622 is about 739.5112562846.

The spelling of 404421622 in words is "four hundred four million, four hundred twenty-one thousand, six hundred twenty-two".