653604372 has 144 divisors (see below), whose sum is σ = 1846720512. Its totient is φ = 193950720.

The previous prime is 653604353. The next prime is 653604383. The reversal of 653604372 is 273406356.

653604372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 891318 + ... + 892050.

It is an arithmetic number, because the mean of its divisors is an integer number (12824448).

Almost surely, 2^653604372 is an apocalyptic number.

653604372 is a gapful number since it is divisible by the number (62) 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 653604372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923360256).

653604372 is an abundant number, since it is smaller than the sum of its proper divisors (1193116140).

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

653604372 is a wasteful number, since it uses less digits than its factorization.

653604372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 653604372 is about 25565.6873954134. The cubic root of 653604372 is about 867.8373076690.

The spelling of 653604372 in words is "six hundred fifty-three million, six hundred four thousand, three hundred seventy-two".