222924540 has 24 divisors (see below), whose sum is σ = 624188880. Its totient is φ = 59446528.

The previous prime is 222924539. The next prime is 222924551. The reversal of 222924540 is 45429222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 222924498 and 222924507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857645 + ... + 1857764.

It is an arithmetic number, because the mean of its divisors is an integer number (26007870).

Almost surely, 2^222924540 is an apocalyptic number.

222924540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222924540 is an abundant number, since it is smaller than the sum of its proper divisors (401264340).

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

222924540 is a wasteful number, since it uses less digits than its factorization.

222924540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715421 (or 3715419 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 222924540 is about 14930.6577216143. The cubic root of 222924540 is about 606.3442912821.

The spelling of 222924540 in words is "two hundred twenty-two million, nine hundred twenty-four thousand, five hundred forty".