242187552 has 36 divisors (see below), whose sum is σ = 688721670. Its totient is φ = 80729088.

The previous prime is 242187523. The next prime is 242187557. The reversal of 242187552 is 255781242.

It is a happy number.

242187552 is a `hidden beast` number, since 2 + 4 + 21 + 87 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 159668496 + 82519056 = 12636^2 + 9084^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (242187557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420177 + ... + 420752.

Almost surely, 2^242187552 is an apocalyptic number.

It is an amenable number.

242187552 is an abundant number, since it is smaller than the sum of its proper divisors (446534118).

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

242187552 is a wasteful number, since it uses less digits than its factorization.

242187552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840945 (or 840934 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 242187552 is about 15562.3761681820. The cubic root of 242187552 is about 623.3289136414.

The spelling of 242187552 in words is "two hundred forty-two million, one hundred eighty-seven thousand, five hundred fifty-two".