999156752 has 40 divisors (see below), whose sum is σ = 2128530432. Its totient is φ = 450576000.

The previous prime is 999156751. The next prime is 999156761. The reversal of 999156752 is 257651999.

It is a happy number.

999156752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 999156694 and 999156703.

It is not an unprimeable number, because it can be changed into a prime (999156751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 44702.

Almost surely, 2^999156752 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 999156752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1064265216).

999156752 is an abundant number, since it is smaller than the sum of its proper divisors (1129373680).

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

999156752 is a wasteful number, since it uses less digits than its factorization.

999156752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44847 (or 44841 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 53.

The square root of 999156752 is about 31609.4408681963. The cubic root of 999156752 is about 999.7188382888.

It can be divided in two parts, 999 and 156752, that added together give a palindrome (157751).

The spelling of 999156752 in words is "nine hundred ninety-nine million, one hundred fifty-six thousand, seven hundred fifty-two".