749028398 has 8 divisors (see below), whose sum is σ = 1189633392. Its totient is φ = 352483936.

The previous prime is 749028391. The next prime is 749028409. The reversal of 749028398 is 893820947.

It is a happy number.

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

It is a super-2 number, since 2×749028398² = 1122087082020892808, which contains 22 as substring.

It is a Curzon number.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11015090 + ... + 11015157.

It is an arithmetic number, because the mean of its divisors is an integer number (148704174).

Almost surely, 2^749028398 is an apocalyptic number.

749028398 is a deficient number, since it is larger than the sum of its proper divisors (440604994).

749028398 is a wasteful number, since it uses less digits than its factorization.

749028398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22030266.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 749028398 is about 27368.3831820588. The cubic root of 749028398 is about 908.1677895399.

The spelling of 749028398 in words is "seven hundred forty-nine million, twenty-eight thousand, three hundred ninety-eight".