242399670 has 16 divisors (see below), whose sum is σ = 581759280. Its totient is φ = 64639904.

The previous prime is 242399669. The next prime is 242399699. The reversal of 242399670 is 76993242.

It is a happy number.

It is a super-2 number, since 2×242399670² = 117515200032217800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4039965 + ... + 4040024.

It is an arithmetic number, because the mean of its divisors is an integer number (36359955).

Almost surely, 2^242399670 is an apocalyptic number.

242399670 is an abundant number, since it is smaller than the sum of its proper divisors (339359610).

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

242399670 is a wasteful number, since it uses less digits than its factorization.

242399670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079999.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 242399670 is about 15569.1897669725. The cubic root of 242399670 is about 623.5108397274.

The spelling of 242399670 in words is "two hundred forty-two million, three hundred ninety-nine thousand, six hundred seventy".