242220880 has 40 divisors (see below), whose sum is σ = 614362464. Its totient is φ = 88080000.

The previous prime is 242220841. The next prime is 242220893. The reversal of 242220880 is 88022242.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136746 + ... + 138505.

Almost surely, 2^242220880 is an apocalyptic number.

242220880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242220880 is an abundant number, since it is smaller than the sum of its proper divisors (372141584).

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

242220880 is a wasteful number, since it uses less digits than its factorization.

242220880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275275 (or 275269 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 242220880 is about 15563.4469189830. The cubic root of 242220880 is about 623.3575049171.

It can be divided in two parts, 242 and 220880, that added together give a palindrome (221122).

The spelling of 242220880 in words is "two hundred forty-two million, two hundred twenty thousand, eight hundred eighty".