749205849 has 8 divisors (see below), whose sum is σ = 1141647040. Its totient is φ = 428117616.

The previous prime is 749205817. The next prime is 749205851. The reversal of 749205849 is 948502947.

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

It is not a de Polignac number, because 749205849 - 2⁵ = 749205817 is a prime.

It is a super-2 number, since 2×749205849² = 1122618808351621602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749205798 and 749205807.

It is not an unprimeable number, because it can be changed into a prime (749205449) 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, 17838214 + ... + 17838255.

It is an arithmetic number, because the mean of its divisors is an integer number (142705880).

Almost surely, 2^749205849 is an apocalyptic number.

It is an amenable number.

749205849 is a deficient number, since it is larger than the sum of its proper divisors (392441191).

749205849 is a wasteful number, since it uses less digits than its factorization.

749205849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35676479.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 749205849 is about 27371.6248878286. The cubic root of 749205849 is about 908.2395013549.

The spelling of 749205849 in words is "seven hundred forty-nine million, two hundred five thousand, eight hundred forty-nine".