654536420 has 12 divisors (see below), whose sum is σ = 1374526524. Its totient is φ = 261814560.

The previous prime is 654536419. The next prime is 654536473. The reversal of 654536420 is 24635456.

It is a happy number.

654536420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 253255396 + 401281024 = 15914^2 + 20032^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16363391 + ... + 16363430.

It is an arithmetic number, because the mean of its divisors is an integer number (114543877).

Almost surely, 2^654536420 is an apocalyptic number.

It is an amenable number.

654536420 is an abundant number, since it is smaller than the sum of its proper divisors (719990104).

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

654536420 is a wasteful number, since it uses less digits than its factorization.

654536420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32726830 (or 32726828 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 654536420 is about 25583.9093963374. The cubic root of 654536420 is about 868.2496273543.

The spelling of 654536420 in words is "six hundred fifty-four million, five hundred thirty-six thousand, four hundred twenty".