749198208 has 128 divisors (see below), whose sum is σ = 2184595200. Its totient is φ = 225607680.

The previous prime is 749198183. The next prime is 749198227. The reversal of 749198208 is 802891947.

749198208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×749198208² = 1122595909740822528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814773 + ... + 815691.

It is an arithmetic number, because the mean of its divisors is an integer number (17067150).

Almost surely, 2^749198208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749198208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092297600).

749198208 is an abundant number, since it is smaller than the sum of its proper divisors (1435396992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

749198208 is a wasteful number, since it uses less digits than its factorization.

749198208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 749198208 is about 27371.4853086200. The cubic root of 749198208 is about 908.2364136936.

The spelling of 749198208 in words is "seven hundred forty-nine million, one hundred ninety-eight thousand, two hundred eight".