222743412 has 48 divisors (see below), whose sum is σ = 581071680. Its totient is φ = 73786464.

The previous prime is 222743407. The next prime is 222743413. The reversal of 222743412 is 214347222.

222743412 is a `hidden beast` number, since 2 + 227 + 434 + 1 + 2 = 666.

It is a super-2 number, since 2×222743412² = 99229255178803488, which contains 22 as substring.

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 (222743413) 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, 11278 + ... + 23930.

It is an arithmetic number, because the mean of its divisors is an integer number (12105660).

Almost surely, 2^222743412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222743412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290535840).

222743412 is an abundant number, since it is smaller than the sum of its proper divisors (358328268).

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

222743412 is a wasteful number, since it uses less digits than its factorization.

222743412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12829 (or 12821 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 222743412 is about 14924.5908486632. The cubic root of 222743412 is about 606.1800268977.

The spelling of 222743412 in words is "two hundred twenty-two million, seven hundred forty-three thousand, four hundred twelve".