242663520 has 96 divisors (see below), whose sum is σ = 833898240. Its totient is φ = 58826240.

The previous prime is 242663513. The next prime is 242663549. The reversal of 242663520 is 25366242.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17700 + ... + 28259.

It is an arithmetic number, because the mean of its divisors is an integer number (8686440).

Almost surely, 2^242663520 is an apocalyptic number.

242663520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242663520 is an abundant number, since it is smaller than the sum of its proper divisors (591234720).

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

242663520 is a wasteful number, since it uses less digits than its factorization.

242663520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45988 (or 45980 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 242663520 is about 15577.6609283936. The cubic root of 242663520 is about 623.7369864608.

The spelling of 242663520 in words is "two hundred forty-two million, six hundred sixty-three thousand, five hundred twenty".