653234472 has 144 divisors (see below), whose sum is σ = 1967221620. Its totient is φ = 195655680.

The previous prime is 653234471. The next prime is 653234473. The reversal of 653234472 is 274432356.

653234472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (653234471) and next prime (653234473).

It can be written as a sum of positive squares in 2 ways, for example, as 599564196 + 53670276 = 24486^2 + 7326^2 .

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

It is not an unprimeable number, because it can be changed into a prime (653234471) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 844678 + ... + 845450.

Almost surely, 2^653234472 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 653234472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983610810).

653234472 is an abundant number, since it is smaller than the sum of its proper divisors (1313987148).

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

653234472 is a wasteful number, since it uses less digits than its factorization.

653234472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 886 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 653234472 is about 25558.4520658040. The cubic root of 653234472 is about 867.6735625398.

The spelling of 653234472 in words is "six hundred fifty-three million, two hundred thirty-four thousand, four hundred seventy-two".