331041402 has 24 divisors (see below), whose sum is σ = 718701984. Its totient is φ = 110124744.

The previous prime is 331041383. The next prime is 331041407. The reversal of 331041402 is 204140133.

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 (331041407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9228 + ... + 27335.

It is an arithmetic number, because the mean of its divisors is an integer number (29945916).

Almost surely, 2^331041402 is an apocalyptic number.

331041402 is an abundant number, since it is smaller than the sum of its proper divisors (387660582).

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

331041402 is a wasteful number, since it uses less digits than its factorization.

331041402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37074 (or 37071 counting only the distinct ones).

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

The square root of 331041402 is about 18194.5431929466. The cubic root of 331041402 is about 691.7684817522.

Adding to 331041402 its reverse (204140133), we get a palindrome (535181535).

The spelling of 331041402 in words is "three hundred thirty-one million, forty-one thousand, four hundred two".