654232820 has 12 divisors (see below), whose sum is σ = 1373888964. Its totient is φ = 261693120.

The previous prime is 654232807. The next prime is 654232847. The reversal of 654232820 is 28232456.

It can be written as a sum of positive squares in 2 ways, for example, as 120253156 + 533979664 = 10966^2 + 23108^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 16355801 + ... + 16355840.

It is an arithmetic number, because the mean of its divisors is an integer number (114490747).

Almost surely, 2^654232820 is an apocalyptic number.

It is an amenable number.

654232820 is an abundant number, since it is smaller than the sum of its proper divisors (719656144).

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

654232820 is a wasteful number, since it uses less digits than its factorization.

654232820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32711650 (or 32711648 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 654232820 is about 25577.9752912540. The cubic root of 654232820 is about 868.1153637006.

The spelling of 654232820 in words is "six hundred fifty-four million, two hundred thirty-two thousand, eight hundred twenty".