3692322720 has 144 divisors (see below), whose sum is σ = 12656203560. Its totient is φ = 980232192.

The previous prime is 3692322709. The next prime is 3692322737. The reversal of 3692322720 is 272232963.

3692322720 is a `hidden beast` number, since 369 + 23 + 2 + 272 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3266808336 + 425514384 = 57156^2 + 20628^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324162 + ... + 335358.

Almost surely, 2^3692322720 is an apocalyptic number.

3692322720 is a gapful number since it is divisible by the number (30) 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 3692322720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6328101780).

3692322720 is an abundant number, since it is smaller than the sum of its proper divisors (8963880840).

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

3692322720 is a wasteful number, since it uses less digits than its factorization.

3692322720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11447 (or 11436 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 3692322720 is about 60764.4856803709. The cubic root of 3692322720 is about 1545.6098764206.

The spelling of 3692322720 in words is "three billion, six hundred ninety-two million, three hundred twenty-two thousand, seven hundred twenty".