222054540 has 24 divisors (see below), whose sum is σ = 621752880. Its totient is φ = 59214528.

The previous prime is 222054523. The next prime is 222054571. The reversal of 222054540 is 45450222.

It is a happy number.

It is a super-2 number, since 2×222054540² = 98616437469223200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222054540.

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, 1850395 + ... + 1850514.

It is an arithmetic number, because the mean of its divisors is an integer number (25906370).

Almost surely, 2^222054540 is an apocalyptic number.

222054540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222054540 is an abundant number, since it is smaller than the sum of its proper divisors (399698340).

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

222054540 is a wasteful number, since it uses less digits than its factorization.

222054540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700921 (or 3700919 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 222054540 is about 14901.4945559162. The cubic root of 222054540 is about 605.5544765324.

The spelling of 222054540 in words is "two hundred twenty-two million, fifty-four thousand, five hundred forty".