742263 has 4 divisors (see below), whose sum is σ = 989688. Its totient is φ = 494840.

The previous prime is 742253. The next prime is 742277. The reversal of 742263 is 362247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362247 = 3 ⋅120749.

It is a cyclic number.

It is not a de Polignac number, because 742263 - 2⁶ = 742199 is a prime.

It is a super-2 number, since 2×742263² = 1101908722338, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123708 + ... + 123713.

It is an arithmetic number, because the mean of its divisors is an integer number (247422).

2⁷⁴²²⁶³ is an apocalyptic number.

742263 is a deficient number, since it is larger than the sum of its proper divisors (247425).

742263 is a wasteful number, since it uses less digits than its factorization.

742263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247424.

The product of its digits is 2016, while the sum is 24.

The square root of 742263 is about 861.5468646568. The cubic root of 742263 is about 90.5425255207.

The spelling of 742263 in words is "seven hundred forty-two thousand, two hundred sixty-three".