117749632 has 128 divisors (see below), whose sum is σ = 315302400. Its totient is φ = 42301440.

The previous prime is 117749557. The next prime is 117749641. The reversal of 117749632 is 236947711.

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

It is a super-2 number, since 2×117749632² = 27729951672270848, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 127669 + ... + 128587.

It is an arithmetic number, because the mean of its divisors is an integer number (2463300).

Almost surely, 2^117749632 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 117749632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157651200).

117749632 is an abundant number, since it is smaller than the sum of its proper divisors (197552768).

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

117749632 is a wasteful number, since it uses less digits than its factorization.

117749632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 952 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 117749632 is about 10851.2502505472. The cubic root of 117749632 is about 490.1396686402.

The spelling of 117749632 in words is "one hundred seventeen million, seven hundred forty-nine thousand, six hundred thirty-two".