2120642832 has 160 divisors (see below), whose sum is σ = 7232108544. Its totient is φ = 518400000.

The previous prime is 2120642831. The next prime is 2120642861. The reversal of 2120642832 is 2382460212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120642832.

It is not an unprimeable number, because it can be changed into a prime (2120642831) 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, 45957 + ... + 79707.

Almost surely, 2^2120642832 is an apocalyptic number.

2120642832 is a gapful number since it is divisible by the number (22) 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 2120642832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3616054272).

2120642832 is an abundant number, since it is smaller than the sum of its proper divisors (5111465712).

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

2120642832 is a wasteful number, since it uses less digits than its factorization.

2120642832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33797 (or 33791 counting only the distinct ones).

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

The square root of 2120642832 is about 46050.4379132273. The cubic root of 2120642832 is about 1284.7614877258.

The spelling of 2120642832 in words is "two billion, one hundred twenty million, six hundred forty-two thousand, eight hundred thirty-two".