742574623 has 4 divisors (see below), whose sum is σ = 848656720. Its totient is φ = 636492528.

The previous prime is 742574617. The next prime is 742574633. The reversal of 742574623 is 326475247.

It is a happy number.

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

It is not a de Polignac number, because 742574623 - 2²⁹ = 205703711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742574633) 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, 53041038 + ... + 53041051.

It is an arithmetic number, because the mean of its divisors is an integer number (212164180).

Almost surely, 2^742574623 is an apocalyptic number.

742574623 is a deficient number, since it is larger than the sum of its proper divisors (106082097).

742574623 is a wasteful number, since it uses less digits than its factorization.

742574623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106082096.

The product of its digits is 282240, while the sum is 40.

The square root of 742574623 is about 27250.2224394591. Note that the first 3 decimals coincide. The cubic root of 742574623 is about 905.5519451888.

The spelling of 742574623 in words is "seven hundred forty-two million, five hundred seventy-four thousand, six hundred twenty-three".