303742 has 4 divisors (see below), whose sum is σ = 455616. Its totient is φ = 151870.

The previous prime is 303731. The next prime is 303749. The reversal of 303742 is 247303.

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 (303749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75934 + ... + 75937.

It is an arithmetic number, because the mean of its divisors is an integer number (113904).

2³⁰³⁷⁴² is an apocalyptic number.

303742 is a deficient number, since it is larger than the sum of its proper divisors (151874).

303742 is a wasteful number, since it uses less digits than its factorization.

303742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151873.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 303742 is about 551.1279343310. The cubic root of 303742 is about 67.2204810493.

The spelling of 303742 in words is "three hundred three thousand, seven hundred forty-two", and thus it is an iban number.