264742 has 4 divisors (see below), whose sum is σ = 397116. Its totient is φ = 132370.

The previous prime is 264739. The next prime is 264743. The reversal of 264742 is 247462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247462 = 2 ⋅123731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66184 + ... + 66187.

It is an arithmetic number, because the mean of its divisors is an integer number (99279).

2²⁶⁴⁷⁴² is an apocalyptic number.

264742 is a deficient number, since it is larger than the sum of its proper divisors (132374).

264742 is a wasteful number, since it uses less digits than its factorization.

264742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132373.

The product of its digits is 2688, while the sum is 25.

The square root of 264742 is about 514.5308542741. The cubic root of 264742 is about 64.2107311507.

The spelling of 264742 in words is "two hundred sixty-four thousand, seven hundred forty-two".