742493791 has 8 divisors (see below), whose sum is σ = 802499264. Its totient is φ = 682901280.

The previous prime is 742493783. The next prime is 742493809. The reversal of 742493791 is 197394247.

742493791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742493791 - 2³ = 742493783 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 (742493711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99495 + ... + 106696.

It is an arithmetic number, because the mean of its divisors is an integer number (100312408).

Almost surely, 2^742493791 is an apocalyptic number.

742493791 is a deficient number, since it is larger than the sum of its proper divisors (60005473).

742493791 is a wasteful number, since it uses less digits than its factorization.

742493791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206481.

The product of its digits is 381024, while the sum is 46.

The square root of 742493791 is about 27248.7392552389. The cubic root of 742493791 is about 905.5190864346.

The spelling of 742493791 in words is "seven hundred forty-two million, four hundred ninety-three thousand, seven hundred ninety-one".