653533434 has 48 divisors (see below), whose sum is σ = 1474304832. Its totient is φ = 216973728.

The previous prime is 653533417. The next prime is 653533493. The reversal of 653533434 is 434335356.

653533434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 125262 + ... + 130374.

It is an arithmetic number, because the mean of its divisors is an integer number (30714684).

Almost surely, 2^653533434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653533434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737152416).

653533434 is an abundant number, since it is smaller than the sum of its proper divisors (820771398).

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

653533434 is a wasteful number, since it uses less digits than its factorization.

653533434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393 (or 5381 counting only the distinct ones).

The product of its digits is 194400, while the sum is 36.

The square root of 653533434 is about 25564.2999904163. The cubic root of 653533434 is about 867.8059100463.

The spelling of 653533434 in words is "six hundred fifty-three million, five hundred thirty-three thousand, four hundred thirty-four".