311700048 has 80 divisors (see below), whose sum is σ = 916655616. Its totient is φ = 90344320.

The previous prime is 311700043. The next prime is 311700101. The reversal of 311700048 is 840007113.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311700041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690 + ... + 24977.

Almost surely, 2^311700048 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 311700048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458327808).

311700048 is an abundant number, since it is smaller than the sum of its proper divisors (604955568).

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

311700048 is a wasteful number, since it uses less digits than its factorization.

311700048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25712 (or 25706 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 311700048 is about 17655.0289719388. The cubic root of 311700048 is about 678.0248683459.

The spelling of 311700048 in words is "three hundred eleven million, seven hundred thousand, forty-eight".