222075440 has 20 divisors (see below), whose sum is σ = 516325584. Its totient is φ = 88830144.

The previous prime is 222075421. The next prime is 222075461. The reversal of 222075440 is 44570222.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387892 + ... + 1388051.

Almost surely, 2^222075440 is an apocalyptic number.

222075440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222075440 is an abundant number, since it is smaller than the sum of its proper divisors (294250144).

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

222075440 is a wasteful number, since it uses less digits than its factorization.

222075440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775956 (or 2775950 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 222075440 is about 14902.1958113561. The cubic root of 222075440 is about 605.5734744048.

The spelling of 222075440 in words is "two hundred twenty-two million, seventy-five thousand, four hundred forty".