749028399 has 16 divisors (see below), whose sum is σ = 1157014272. Its totient is φ = 422152128.

The previous prime is 749028391. The next prime is 749028409. The reversal of 749028399 is 993820947.

It is not a de Polignac number, because 749028399 - 2³ = 749028391 is a prime.

It is a super-2 number, since 2×749028399² = 1122087085017006402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749028391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242769 + ... + 245834.

It is an arithmetic number, because the mean of its divisors is an integer number (72313392).

Almost surely, 2^749028399 is an apocalyptic number.

749028399 is a deficient number, since it is larger than the sum of its proper divisors (407985873).

749028399 is a wasteful number, since it uses less digits than its factorization.

749028399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488686.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 749028399 is about 27368.3832003281. The cubic root of 749028399 is about 908.1677899440.

The spelling of 749028399 in words is "seven hundred forty-nine million, twenty-eight thousand, three hundred ninety-nine".