249539342 has 16 divisors (see below), whose sum is σ = 403849152. Its totient is φ = 114958560.

The previous prime is 249539341. The next prime is 249539393. The reversal of 249539342 is 243935942.

It is a self number, because there is not a number n which added to its sum of digits gives 249539342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249539341) 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, 5867 + ... + 23097.

It is an arithmetic number, because the mean of its divisors is an integer number (25240572).

Almost surely, 2^249539342 is an apocalyptic number.

249539342 is a deficient number, since it is larger than the sum of its proper divisors (154309810).

249539342 is a wasteful number, since it uses less digits than its factorization.

249539342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17803.

The product of its digits is 233280, while the sum is 41.

The square root of 249539342 is about 15796.8142990921. The cubic root of 249539342 is about 629.5733585743.

The spelling of 249539342 in words is "two hundred forty-nine million, five hundred thirty-nine thousand, three hundred forty-two".