749970 has 48 divisors (see below), whose sum is σ = 2103192. Its totient is φ = 184320.

The previous prime is 749941. The next prime is 749971. The reversal of 749970 is 79947.

749970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 622521 + 127449 = 789^2 + 357^2 .

It is an Ulam number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (749971) by changing a digit.

749970 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850 + ... + 1490.

2⁷⁴⁹⁹⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051596).

749970 is an abundant number, since it is smaller than the sum of its proper divisors (1353222).

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

749970 is a wasteful number, since it uses less digits than its factorization.

749970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 749970 is about 866.0080831032. The cubic root of 749970 is about 90.8548182117.

It can be divided in two parts, 7499 and 70, that added together give a square (7569 = 87²).

The spelling of 749970 in words is "seven hundred forty-nine thousand, nine hundred seventy".