331433142 has 16 divisors (see below), whose sum is σ = 669062592. Its totient is φ = 109445000.

The previous prime is 331433119. The next prime is 331433153. The reversal of 331433142 is 241334133.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257484 + ... + 258767.

It is an arithmetic number, because the mean of its divisors is an integer number (41816412).

Almost surely, 2^331433142 is an apocalyptic number.

331433142 is an abundant number, since it is smaller than the sum of its proper divisors (337629450).

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

331433142 is a wasteful number, since it uses less digits than its factorization.

331433142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516363.

The product of its digits is 2592, while the sum is 24.

The square root of 331433142 is about 18205.3053256461. The cubic root of 331433142 is about 692.0412437690.

Adding to 331433142 its reverse (241334133), we get a palindrome (572767275).

Subtracting from 331433142 its reverse (241334133), we obtain a palindrome (90099009).

The spelling of 331433142 in words is "three hundred thirty-one million, four hundred thirty-three thousand, one hundred forty-two".