653405454 has 80 divisors (see below), whose sum is σ = 1582534800. Its totient is φ = 200309760.

The previous prime is 653405453. The next prime is 653405531. The reversal of 653405454 is 454504356.

653405454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×653405454² = 853877374633892232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653405453) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 945249 + ... + 945939.

It is an arithmetic number, because the mean of its divisors is an integer number (19781685).

Almost surely, 2^653405454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653405454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791267400).

653405454 is an abundant number, since it is smaller than the sum of its proper divisors (929129346).

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

653405454 is a wasteful number, since it uses less digits than its factorization.

653405454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 653405454 is about 25561.7967678330. The cubic root of 653405454 is about 867.7492595140.

The spelling of 653405454 in words is "six hundred fifty-three million, four hundred five thousand, four hundred fifty-four".