342249531 has 8 divisors (see below), whose sum is σ = 491435280. Its totient is φ = 210615072.

The previous prime is 342249521. The next prime is 342249539. The reversal of 342249531 is 135942243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 342249531 - 2¹¹ = 342247483 is a prime.

It is a super-2 number, since 2×342249531² = 234269482939439922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 342249492 and 342249501.

It is not an unprimeable number, because it can be changed into a prime (342249539) by changing a digit.

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, 4387776 + ... + 4387853.

It is an arithmetic number, because the mean of its divisors is an integer number (61429410).

Almost surely, 2^342249531 is an apocalyptic number.

342249531 is a deficient number, since it is larger than the sum of its proper divisors (149185749).

342249531 is a wasteful number, since it uses less digits than its factorization.

342249531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8775645.

The product of its digits is 25920, while the sum is 33.

The square root of 342249531 is about 18499.9873243200. The cubic root of 342249531 is about 699.4891040834.

The spelling of 342249531 in words is "three hundred forty-two million, two hundred forty-nine thousand, five hundred thirty-one".