310042140 has 48 divisors (see below), whose sum is σ = 872944800. Its totient is φ = 82218240.

The previous prime is 310042099. The next prime is 310042163. The reversal of 310042140 is 41240013.

It is a super-2 number, since 2×310042140² = 192252257151559200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3415 + ... + 25134.

It is an arithmetic number, because the mean of its divisors is an integer number (18186350).

Almost surely, 2^310042140 is an apocalyptic number.

310042140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

310042140 is an abundant number, since it is smaller than the sum of its proper divisors (562902660).

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

310042140 is a wasteful number, since it uses less digits than its factorization.

310042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28742 (or 28740 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 310042140 is about 17608.0135165782. The cubic root of 310042140 is about 676.8206104108.

Adding to 310042140 its reverse (41240013), we get a palindrome (351282153).

The spelling of 310042140 in words is "three hundred ten million, forty-two thousand, one hundred forty".