331013430 has 96 divisors (see below), whose sum is σ = 943252128. Its totient is φ = 79872000.

The previous prime is 331013411. The next prime is 331013471. The reversal of 331013430 is 34310133.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253780 + ... + 255080.

It is an arithmetic number, because the mean of its divisors is an integer number (9825543).

Almost surely, 2^331013430 is an apocalyptic number.

331013430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 331013430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471626064).

331013430 is an abundant number, since it is smaller than the sum of its proper divisors (612238698).

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

331013430 is a wasteful number, since it uses less digits than its factorization.

331013430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 331013430 is about 18193.7744846967. The cubic root of 331013430 is about 691.7489970866.

Adding to 331013430 its reverse (34310133), we get a palindrome (365323563).

The spelling of 331013430 in words is "three hundred thirty-one million, thirteen thousand, four hundred thirty".