331124040 has 96 divisors (see below), whose sum is σ = 1158950520. Its totient is φ = 81506304.

The previous prime is 331124033. The next prime is 331124047. The reversal of 331124040 is 40421133.

It is an interprime number because it is at equal distance from previous prime (331124033) and next prime (331124047).

It can be written as a sum of positive squares in 4 ways, for example, as 158306724 + 172817316 = 12582^2 + 13146^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (331124047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30697 + ... + 40056.

Almost surely, 2^331124040 is an apocalyptic number.

331124040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331124040 is an abundant number, since it is smaller than the sum of its proper divisors (827826480).

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

331124040 is a wasteful number, since it uses less digits than its factorization.

331124040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70783 (or 70776 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 331124040 is about 18196.8140068530. The cubic root of 331124040 is about 691.8260391124.

Adding to 331124040 its reverse (40421133), we get a palindrome (371545173).

The spelling of 331124040 in words is "three hundred thirty-one million, one hundred twenty-four thousand, forty".