749001216 has 80 divisors (see below), whose sum is σ = 2018174400. Its totient is φ = 246816768.

The previous prime is 749001191. The next prime is 749001221. The reversal of 749001216 is 612100947.

It is a happy number.

It is a super-2 number, since 2×749001216² = 1122005643138957312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133965 + ... + 139443.

It is an arithmetic number, because the mean of its divisors is an integer number (25227180).

Almost surely, 2^749001216 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 749001216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009087200).

749001216 is an abundant number, since it is smaller than the sum of its proper divisors (1269173184).

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

749001216 is an equidigital number, since it uses as much as digits as its factorization.

749001216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589 (or 5573 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 749001216 is about 27367.8865826355. The cubic root of 749001216 is about 908.1568037012.

The spelling of 749001216 in words is "seven hundred forty-nine million, one thousand, two hundred sixteen".