310042442 has 4 divisors (see below), whose sum is σ = 465063666. Its totient is φ = 155021220.

The previous prime is 310042429. The next prime is 310042457. The reversal of 310042442 is 244240013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244240013 = 23 ⋅10619131.

It can be written as a sum of positive squares in only one way, i.e., 284225881 + 25816561 = 16859^2 + 5081^2 .

It is a super-2 number, since 2×310042442² = 192252631682646728, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 77510609 + ... + 77510612.

Almost surely, 2^310042442 is an apocalyptic number.

310042442 is a deficient number, since it is larger than the sum of its proper divisors (155021224).

310042442 is a wasteful number, since it uses less digits than its factorization.

310042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155021223.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 310042442 is about 17608.0220922169. The cubic root of 310042442 is about 676.8208301656.

Adding to 310042442 its reverse (244240013), we get a palindrome (554282455).

The spelling of 310042442 in words is "three hundred ten million, forty-two thousand, four hundred forty-two".