220266642 has 8 divisors (see below), whose sum is σ = 440533296. Its totient is φ = 73422212.

The previous prime is 220266617. The next prime is 220266643. The reversal of 220266642 is 246662022.

It is a sphenic number, since it is the product of 3 distinct primes.

220266642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (220266643) 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, 18355548 + ... + 18355559.

It is an arithmetic number, because the mean of its divisors is an integer number (55066662).

Almost surely, 2^220266642 is an apocalyptic number.

220266642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220266642 is a wasteful number, since it uses less digits than its factorization.

220266642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36711112.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 220266642 is about 14841.3827522910. The cubic root of 220266642 is about 603.9248641973.

The spelling of 220266642 in words is "two hundred twenty million, two hundred sixty-six thousand, six hundred forty-two".