749342321 has 8 divisors (see below), whose sum is σ = 922267584. Its totient is φ = 592886160.

The previous prime is 749342287. The next prime is 749342333. The reversal of 749342321 is 123243947.

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 749342321 - 2⁶ = 749342257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749342351) 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, 4117175 + ... + 4117356.

It is an arithmetic number, because the mean of its divisors is an integer number (115283448).

Almost surely, 2^749342321 is an apocalyptic number.

It is an amenable number.

749342321 is a deficient number, since it is larger than the sum of its proper divisors (172925263).

749342321 is a wasteful number, since it uses less digits than its factorization.

749342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8234551.

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

The square root of 749342321 is about 27374.1177209422. The cubic root of 749342321 is about 908.2946449607.

The spelling of 749342321 in words is "seven hundred forty-nine million, three hundred forty-two thousand, three hundred twenty-one".