242151320 has 16 divisors (see below), whose sum is σ = 544840560. Its totient is φ = 96860512.

The previous prime is 242151317. The next prime is 242151397. The reversal of 242151320 is 23151242.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 242151292 and 242151301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026852 + ... + 3026931.

It is an arithmetic number, because the mean of its divisors is an integer number (34052535).

Almost surely, 2^242151320 is an apocalyptic number.

242151320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242151320 is an abundant number, since it is smaller than the sum of its proper divisors (302689240).

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

242151320 is a wasteful number, since it uses less digits than its factorization.

242151320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053794 (or 6053790 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 242151320 is about 15561.2120350569. The cubic root of 242151320 is about 623.2978281193.

The spelling of 242151320 in words is "two hundred forty-two million, one hundred fifty-one thousand, three hundred twenty".