222455780 has 24 divisors (see below), whose sum is σ = 473739840. Its totient is φ = 87728480.

The previous prime is 222455771. The next prime is 222455789. The reversal of 222455780 is 87554222.

222455780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222455771) and next prime (222455789).

It is a self number, because there is not a number n which added to its sum of digits gives 222455780.

It is not an unprimeable number, because it can be changed into a prime (222455789) 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, 76910 + ... + 79749.

It is an arithmetic number, because the mean of its divisors is an integer number (19739160).

Almost surely, 2^222455780 is an apocalyptic number.

222455780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222455780 is an abundant number, since it is smaller than the sum of its proper divisors (251284060).

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

222455780 is a wasteful number, since it uses less digits than its factorization.

222455780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156739 (or 156737 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 222455780 is about 14914.9515587547. The cubic root of 222455780 is about 605.9189913027.

The spelling of 222455780 in words is "two hundred twenty-two million, four hundred fifty-five thousand, seven hundred eighty".