749791049 has 4 divisors (see below), whose sum is σ = 856904064. Its totient is φ = 642678036.

The previous prime is 749790991. The next prime is 749791061. The reversal of 749791049 is 940197947.

749791049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 749791049 - 2⁸ = 749790793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749790988 and 749791006.

It is not an unprimeable number, because it can be changed into a prime (749791349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53556497 + ... + 53556510.

It is an arithmetic number, because the mean of its divisors is an integer number (214226016).

Almost surely, 2^749791049 is an apocalyptic number.

It is an amenable number.

749791049 is a deficient number, since it is larger than the sum of its proper divisors (107113015).

749791049 is a wasteful number, since it uses less digits than its factorization.

749791049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107113014.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 749791049 is about 27382.3127036414. The cubic root of 749791049 is about 908.4759132092.

The spelling of 749791049 in words is "seven hundred forty-nine million, seven hundred ninety-one thousand, forty-nine".