749706630 has 128 divisors (see below), whose sum is σ = 1959552000. Its totient is φ = 182882304.

The previous prime is 749706593. The next prime is 749706641. The reversal of 749706630 is 36607947.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3767271 + ... + 3767469.

It is an arithmetic number, because the mean of its divisors is an integer number (15309000).

Almost surely, 2^749706630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749706630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979776000).

749706630 is an abundant number, since it is smaller than the sum of its proper divisors (1209845370).

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

749706630 is a wasteful number, since it uses less digits than its factorization.

749706630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 749706630 is about 27380.7711724853. The cubic root of 749706630 is about 908.4418168181.

The spelling of 749706630 in words is "seven hundred forty-nine million, seven hundred six thousand, six hundred thirty".