222540028 has 12 divisors (see below), whose sum is σ = 390229000. Its totient is φ = 111046032.

The previous prime is 222539987. The next prime is 222540029. The reversal of 222540028 is 820045222.

It is a junction number, because it is equal to n+sod(n) for n = 222539984 and 222540011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222540029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53751 + ... + 57742.

Almost surely, 2^222540028 is an apocalyptic number.

It is an amenable number.

222540028 is a deficient number, since it is larger than the sum of its proper divisors (167688972).

222540028 is a wasteful number, since it uses less digits than its factorization.

222540028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111996 (or 111994 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 222540028 is about 14917.7755714450. The cubic root of 222540028 is about 605.9954724507.

The spelling of 222540028 in words is "two hundred twenty-two million, five hundred forty thousand, twenty-eight".