222154004 has 48 divisors (see below), whose sum is σ = 418790400. Its totient is φ = 102806496.

The previous prime is 222154003. The next prime is 222154019. The reversal of 222154004 is 400451222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222154003) 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, 978539 + ... + 978765.

It is an arithmetic number, because the mean of its divisors is an integer number (8724800).

Almost surely, 2^222154004 is an apocalyptic number.

It is an amenable number.

222154004 is a deficient number, since it is larger than the sum of its proper divisors (196636396).

222154004 is a wasteful number, since it uses less digits than its factorization.

222154004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 222154004 is about 14904.8315656367. The cubic root of 222154004 is about 605.6448775658.

The spelling of 222154004 in words is "two hundred twenty-two million, one hundred fifty-four thousand, four".