245742 has 16 divisors (see below), whose sum is σ = 561792. Its totient is φ = 70200.

The previous prime is 245741. The next prime is 245747. The reversal of 245742 is 247542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245741) 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, 2884 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (35112).

2²⁴⁵⁷⁴² is an apocalyptic number.

245742 is an abundant number, since it is smaller than the sum of its proper divisors (316050).

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

245742 is a wasteful number, since it uses less digits than its factorization.

245742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5863.

The product of its digits is 2240, while the sum is 24.

The square root of 245742 is about 495.7237133727. The cubic root of 245742 is about 62.6363529762.

The spelling of 245742 in words is "two hundred forty-five thousand, seven hundred forty-two".