242670031 has 4 divisors (see below), whose sum is σ = 245994352. Its totient is φ = 239345712.

The previous prime is 242670023. The next prime is 242670049. The reversal of 242670031 is 130076242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242670031 - 2³ = 242670023 is a prime.

It is a super-2 number, since 2×242670031² = 117777487891081922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242669978 and 242670005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242670061) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1662051 + ... + 1662196.

It is an arithmetic number, because the mean of its divisors is an integer number (61498588).

Almost surely, 2^242670031 is an apocalyptic number.

242670031 is a deficient number, since it is larger than the sum of its proper divisors (3324321).

242670031 is an equidigital number, since it uses as much as digits as its factorization.

242670031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324320.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 242670031 is about 15577.8699121542. The cubic root of 242670031 is about 623.7425649881.

The spelling of 242670031 in words is "two hundred forty-two million, six hundred seventy thousand, thirty-one".