331980342 has 16 divisors (see below), whose sum is σ = 686856240. Its totient is φ = 106844192.

The previous prime is 331980289. The next prime is 331980343. The reversal of 331980342 is 243089133.

It is a happy number.

It is a super-2 number, since 2×331980342² = 220421894948873928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331980343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953793 + ... + 954140.

It is an arithmetic number, because the mean of its divisors is an integer number (42928515).

Almost surely, 2^331980342 is an apocalyptic number.

331980342 is an abundant number, since it is smaller than the sum of its proper divisors (354875898).

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

331980342 is a wasteful number, since it uses less digits than its factorization.

331980342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907967.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 331980342 is about 18220.3277138475. The cubic root of 331980342 is about 692.4218904285.

The spelling of 331980342 in words is "three hundred thirty-one million, nine hundred eighty thousand, three hundred forty-two".