742331249 has 6 divisors (see below), whose sum is σ = 815951010. Its totient is φ = 674846480.

The previous prime is 742331237. The next prime is 742331269. The reversal of 742331249 is 942133247.

It can be written as a sum of positive squares in only one way, i.e., 501088225 + 241243024 = 22385^2 + 15532^2 .

It is not a de Polignac number, because 742331249 - 2²⁰ = 741282673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742331269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3067364 + ... + 3067605.

It is an arithmetic number, because the mean of its divisors is an integer number (135991835).

Almost surely, 2^742331249 is an apocalyptic number.

It is an amenable number.

742331249 is a deficient number, since it is larger than the sum of its proper divisors (73619761).

742331249 is a wasteful number, since it uses less digits than its factorization.

742331249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134991 (or 6134980 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 742331249 is about 27245.7565319813. The cubic root of 742331249 is about 905.4530047934.

The spelling of 742331249 in words is "seven hundred forty-two million, three hundred thirty-one thousand, two hundred forty-nine".