242986740 has 24 divisors (see below), whose sum is σ = 680363040. Its totient is φ = 64796448.

The previous prime is 242986727. The next prime is 242986781. The reversal of 242986740 is 47689242.

It is a junction number, because it is equal to n+sod(n) for n = 242986692 and 242986701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024830 + ... + 2024949.

It is an arithmetic number, because the mean of its divisors is an integer number (28348460).

Almost surely, 2^242986740 is an apocalyptic number.

242986740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242986740 is an abundant number, since it is smaller than the sum of its proper divisors (437376300).

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

242986740 is a wasteful number, since it uses less digits than its factorization.

242986740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049791 (or 4049789 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 242986740 is about 15588.0319476193. The cubic root of 242986740 is about 624.0137961282.

The spelling of 242986740 in words is "two hundred forty-two million, nine hundred eighty-six thousand, seven hundred forty".