742319 has 4 divisors (see below), whose sum is σ = 744096. Its totient is φ = 740544.

The previous prime is 742307. The next prime is 742327. The reversal of 742319 is 913247.

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

It is a cyclic number.

It is not a de Polignac number, because 742319 - 2¹² = 738223 is a prime.

It is a super-2 number, since 2×742319² = 1102074995522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742369) 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, 122 + ... + 1224.

It is an arithmetic number, because the mean of its divisors is an integer number (186024).

2⁷⁴²³¹⁹ is an apocalyptic number.

742319 is a deficient number, since it is larger than the sum of its proper divisors (1777).

742319 is a wasteful number, since it uses less digits than its factorization.

742319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776.

The product of its digits is 1512, while the sum is 26.

The square root of 742319 is about 861.5793637269. The cubic root of 742319 is about 90.5448024557.

The spelling of 742319 in words is "seven hundred forty-two thousand, three hundred nineteen".