242157300 has 216 divisors, whose sum is σ = 881068608. Its totient is φ = 50265600.

The previous prime is 242157287. The next prime is 242157323. The reversal of 242157300 is 3751242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 253624 + ... + 254576.

Almost surely, 2^242157300 is an apocalyptic number.

242157300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242157300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440534304).

242157300 is an abundant number, since it is smaller than the sum of its proper divisors (638911308).

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

242157300 is a wasteful number, since it uses less digits than its factorization.

242157300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 242157300 is about 15561.4041782867. The cubic root of 242157300 is about 623.3029589198.

The spelling of 242157300 in words is "two hundred forty-two million, one hundred fifty-seven thousand, three hundred".