310631000428 has 144 divisors (see below), whose sum is σ = 659842962240. Its totient is φ = 127472776704.

The previous prime is 310631000411. The next prime is 310631000489. The reversal of 310631000428 is 824000136013.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 310631000396 and 310631000405.

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 47 ways as a sum of consecutive naturals, for example, 124102225 + ... + 124104727.

Almost surely, 2^310631000428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 310631000428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329921481120).

310631000428 is an abundant number, since it is smaller than the sum of its proper divisors (349211961812).

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

310631000428 is a wasteful number, since it uses less digits than its factorization.

310631000428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 310631000428 in words is "three hundred ten billion, six hundred thirty-one million, four hundred twenty-eight", and thus it is an aban number.