653438454 has 8 divisors (see below), whose sum is σ = 1306876920. Its totient is φ = 217812816.

The previous prime is 653438419. The next prime is 653438459. The reversal of 653438454 is 454834356.

It is a sphenic number, since it is the product of 3 distinct primes.

653438454 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653438459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54453199 + ... + 54453210.

It is an arithmetic number, because the mean of its divisors is an integer number (163359615).

Almost surely, 2^653438454 is an apocalyptic number.

653438454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

653438454 is a wasteful number, since it uses less digits than its factorization.

653438454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108906414.

The product of its digits is 691200, while the sum is 42.

The square root of 653438454 is about 25562.4422542135. The cubic root of 653438454 is about 867.7638677195.

The spelling of 653438454 in words is "six hundred fifty-three million, four hundred thirty-eight thousand, four hundred fifty-four".