654204222 has 64 divisors (see below), whose sum is σ = 1715097600. Its totient is φ = 180882720.

The previous prime is 654204211. The next prime is 654204227. The reversal of 654204222 is 222402456.

It is a happy number.

654204222 is a `hidden beast` number, since 654 + 2 + 0 + 4 + 2 + 2 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654204227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16197 + ... + 39632.

It is an arithmetic number, because the mean of its divisors is an integer number (26798400).

Almost surely, 2^654204222 is an apocalyptic number.

654204222 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

654204222 is an abundant number, since it is smaller than the sum of its proper divisors (1060893378).

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

654204222 is a wasteful number, since it uses less digits than its factorization.

654204222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55878 (or 55872 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 654204222 is about 25577.4162494964. The cubic root of 654204222 is about 868.1027144194.

Adding to 654204222 its reverse (222402456), we get a palindrome (876606678).

The spelling of 654204222 in words is "six hundred fifty-four million, two hundred four thousand, two hundred twenty-two".