222621804 has 24 divisors (see below), whose sum is σ = 577167920. Its totient is φ = 74207232.

The previous prime is 222621797. The next prime is 222621811. The reversal of 222621804 is 408126222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222621797) and next prime (222621811).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1030549 + ... + 1030764.

Almost surely, 2^222621804 is an apocalyptic number.

It is an amenable number.

222621804 is an abundant number, since it is smaller than the sum of its proper divisors (354546116).

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

222621804 is a wasteful number, since it uses less digits than its factorization.

222621804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061326 (or 2061318 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 222621804 is about 14920.5162109091. The cubic root of 222621804 is about 606.0696910342.

The spelling of 222621804 in words is "two hundred twenty-two million, six hundred twenty-one thousand, eight hundred four".