222406404 has 48 divisors (see below), whose sum is σ = 567791616. Its totient is φ = 67197600.

The previous prime is 222406367. The next prime is 222406411. The reversal of 222406404 is 404604222.

It is a super-2 number, since 2×222406404² = 98929217080422432, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 46149 + ... + 50739.

It is an arithmetic number, because the mean of its divisors is an integer number (11828992).

Almost surely, 2^222406404 is an apocalyptic number.

It is an amenable number.

222406404 is an abundant number, since it is smaller than the sum of its proper divisors (345385212).

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

222406404 is a wasteful number, since it uses less digits than its factorization.

222406404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976 (or 4974 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 222406404 is about 14913.2962151229. The cubic root of 222406404 is about 605.8741583177.

The spelling of 222406404 in words is "two hundred twenty-two million, four hundred six thousand, four hundred four".