222641946 has 48 divisors (see below), whose sum is σ = 503219808. Its totient is φ = 73774800.

The previous prime is 222641933. The next prime is 222641957. The reversal of 222641946 is 649146222.

222641946 is a `hidden beast` number, since 2 + 2 + 2 + 641 + 9 + 4 + 6 = 666.

It is a super-2 number, since 2×222641946² = 99138872237333832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222641946.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86701 + ... + 89231.

It is an arithmetic number, because the mean of its divisors is an integer number (10483746).

Almost surely, 2^222641946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222641946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251609904).

222641946 is an abundant number, since it is smaller than the sum of its proper divisors (280577862).

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

222641946 is a wasteful number, since it uses less digits than its factorization.

222641946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2717 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 222641946 is about 14921.1911722892. The cubic root of 222641946 is about 606.0879688000.

The spelling of 222641946 in words is "two hundred twenty-two million, six hundred forty-one thousand, nine hundred forty-six".