311050040 has 48 divisors (see below), whose sum is σ = 814131000. Its totient is φ = 106645056.

The previous prime is 311050031. The next prime is 311050049. The reversal of 311050040 is 40050113.

It is an interprime number because it is at equal distance from previous prime (311050031) and next prime (311050049).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 311049997 and 311050024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311050049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77390 + ... + 81309.

Almost surely, 2^311050040 is an apocalyptic number.

It is an amenable number.

311050040 is an abundant number, since it is smaller than the sum of its proper divisors (503080960).

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

311050040 is a wasteful number, since it uses less digits than its factorization.

311050040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158724 (or 158713 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 311050040 is about 17636.6107855223. The cubic root of 311050040 is about 677.5532308407.

The spelling of 311050040 in words is "three hundred eleven million, fifty thousand, forty".