742572173 has 16 divisors (see below), whose sum is σ = 890300160. Its totient is φ = 605875200.

The previous prime is 742572169. The next prime is 742572211. The reversal of 742572173 is 371275247.

It is not a de Polignac number, because 742572173 - 2² = 742572169 is a prime.

It is a super-2 number, since 2×742572173² = 1102826864227883858, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742572143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11348 + ... + 40173.

It is an arithmetic number, because the mean of its divisors is an integer number (55643760).

Almost surely, 2^742572173 is an apocalyptic number.

It is an amenable number.

742572173 is a deficient number, since it is larger than the sum of its proper divisors (147727987).

742572173 is a wasteful number, since it uses less digits than its factorization.

742572173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51628.

The product of its digits is 82320, while the sum is 38.

The square root of 742572173 is about 27250.1774856605. The cubic root of 742572173 is about 905.5509492823.

The spelling of 742572173 in words is "seven hundred forty-two million, five hundred seventy-two thousand, one hundred seventy-three".