31529342 has 16 divisors (see below), whose sum is σ = 51326352. Its totient is φ = 14439360.

The previous prime is 31529321. The next prime is 31529347. The reversal of 31529342 is 24392513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31529347) 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, 1223 + ... + 8034.

It is an arithmetic number, because the mean of its divisors is an integer number (3207897).

Almost surely, 2^31529342 is an apocalyptic number.

31529342 is a deficient number, since it is larger than the sum of its proper divisors (19797010).

31529342 is a wasteful number, since it uses less digits than its factorization.

31529342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9403.

The product of its digits is 6480, while the sum is 29.

The square root of 31529342 is about 5615.0994648359. The cubic root of 31529342 is about 315.9160100983.

The spelling of 31529342 in words is "thirty-one million, five hundred twenty-nine thousand, three hundred forty-two".