242286840 has 48 divisors (see below), whose sum is σ = 787433400. Its totient is φ = 64609728.

The previous prime is 242286817. The next prime is 242286857. The reversal of 242286840 is 48682242.

It is a happy number.

242286840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 242286795 and 242286804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336150 + ... + 336869.

Almost surely, 2^242286840 is an apocalyptic number.

242286840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242286840 is an abundant number, since it is smaller than the sum of its proper divisors (545146560).

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

242286840 is a wasteful number, since it uses less digits than its factorization.

242286840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673036 (or 673029 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 242286840 is about 15565.5658425899. The cubic root of 242286840 is about 623.4140826563.

The spelling of 242286840 in words is "two hundred forty-two million, two hundred eighty-six thousand, eight hundred forty".