742529 has 4 divisors (see below), whose sum is σ = 744276. Its totient is φ = 740784.

The previous prime is 742519. The next prime is 742531. The reversal of 742529 is 925247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 925247 = 41 ⋅22567.

It can be written as a sum of positive squares in 2 ways, for example, as 332929 + 409600 = 577^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 742529 - 2⁴ = 742513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (186069).

2⁷⁴²⁵²⁹ is an apocalyptic number.

It is an amenable number.

742529 is a deficient number, since it is larger than the sum of its proper divisors (1747).

742529 is a wasteful number, since it uses less digits than its factorization.

742529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746.

The product of its digits is 5040, while the sum is 29.

The square root of 742529 is about 861.7012243231. The cubic root of 742529 is about 90.5533399424.

The spelling of 742529 in words is "seven hundred forty-two thousand, five hundred twenty-nine".