120644832 has 192 divisors, whose sum is σ = 416102400. Its totient is φ = 29652480.

The previous prime is 120644831. The next prime is 120644863. The reversal of 120644832 is 238446021.

It is a self number, because there is not a number n which added to its sum of digits gives 120644832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120644831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140019 + ... + 140877.

It is an arithmetic number, because the mean of its divisors is an integer number (2167200).

Almost surely, 2^120644832 is an apocalyptic number.

120644832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120644832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208051200).

120644832 is an abundant number, since it is smaller than the sum of its proper divisors (295457568).

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

120644832 is a wasteful number, since it uses less digits than its factorization.

120644832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 120644832 is about 10983.8441358206. The cubic root of 120644832 is about 494.1243328694.

The spelling of 120644832 in words is "one hundred twenty million, six hundred forty-four thousand, eight hundred thirty-two".