749007819 has 48 divisors (see below), whose sum is σ = 1272832704. Its totient is φ = 415584000.

The previous prime is 749007793. The next prime is 749007821. The reversal of 749007819 is 918700947.

It is not a de Polignac number, because 749007819 - 2⁷ = 749007691 is a prime.

It is a super-2 number, since 2×749007819² = 1122025425846273522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749007019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336129 + ... + 338349.

It is an arithmetic number, because the mean of its divisors is an integer number (26517348).

Almost surely, 2^749007819 is an apocalyptic number.

749007819 is a deficient number, since it is larger than the sum of its proper divisors (523824885).

749007819 is a wasteful number, since it uses less digits than its factorization.

749007819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2385 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 749007819 is about 27368.0072164562. The cubic root of 749007819 is about 908.1594723848.

The spelling of 749007819 in words is "seven hundred forty-nine million, seven thousand, eight hundred nineteen".