222620788 has 12 divisors (see below), whose sum is σ = 419554660. Its totient is φ = 102748032.

The previous prime is 222620767. The next prime is 222620803. The reversal of 222620788 is 887026222.

222620788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 82955664 + 139665124 = 9108^2 + 11818^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140533 + ... + 2140636.

Almost surely, 2^222620788 is an apocalyptic number.

It is an amenable number.

222620788 is a deficient number, since it is larger than the sum of its proper divisors (196933872).

222620788 is a wasteful number, since it uses less digits than its factorization.

222620788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281186 (or 4281184 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 222620788 is about 14920.4821637908. The cubic root of 222620788 is about 606.0687690405.

The spelling of 222620788 in words is "two hundred twenty-two million, six hundred twenty thousand, seven hundred eighty-eight".