222196940 has 24 divisors (see below), whose sum is σ = 533272992. Its totient is φ = 76181760.

The previous prime is 222196913. The next prime is 222196943. The reversal of 222196940 is 49691222.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 222196940.

It is not an unprimeable number, because it can be changed into a prime (222196943) 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, 793421 + ... + 793700.

It is an arithmetic number, because the mean of its divisors is an integer number (22219708).

Almost surely, 2^222196940 is an apocalyptic number.

222196940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222196940 is an abundant number, since it is smaller than the sum of its proper divisors (311076052).

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

222196940 is a wasteful number, since it uses less digits than its factorization.

222196940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587137 (or 1587135 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 222196940 is about 14906.2718343656. The cubic root of 222196940 is about 605.6838929829.

The spelling of 222196940 in words is "two hundred twenty-two million, one hundred ninety-six thousand, nine hundred forty".