250742 has 4 divisors (see below), whose sum is σ = 376116. Its totient is φ = 125370.

The previous prime is 250741. The next prime is 250751. The reversal of 250742 is 247052.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62684 + ... + 62687.

It is an arithmetic number, because the mean of its divisors is an integer number (94029).

2²⁵⁰⁷⁴² is an apocalyptic number.

250742 is a deficient number, since it is larger than the sum of its proper divisors (125374).

250742 is a wasteful number, since it uses less digits than its factorization.

250742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125373.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 250742 is about 500.7414502515. The cubic root of 250742 is about 63.0583150315.

Adding to 250742 its reverse (247052), we get a palindrome (497794).

The spelling of 250742 in words is "two hundred fifty thousand, seven hundred forty-two".