222405402 has 16 divisors (see below), whose sum is σ = 455660352. Its totient is φ = 72326880.

The previous prime is 222405401. The next prime is 222405433. The reversal of 222405402 is 204504222.

It is not an unprimeable number, because it can be changed into a prime (222405401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451798 + ... + 452289.

It is an arithmetic number, because the mean of its divisors is an integer number (28478772).

Almost surely, 2^222405402 is an apocalyptic number.

222405402 is an abundant number, since it is smaller than the sum of its proper divisors (233254950).

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

222405402 is a wasteful number, since it uses less digits than its factorization.

222405402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904133.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 222405402 is about 14913.2626209022. The cubic root of 222405402 is about 605.8732484416.

Adding to 222405402 its reverse (204504222), we get a palindrome (426909624).

The spelling of 222405402 in words is "two hundred twenty-two million, four hundred five thousand, four hundred two".