654399426 has 16 divisors (see below), whose sum is σ = 1309068000. Its totient is φ = 218088288.

The previous prime is 654399359. The next prime is 654399433. The reversal of 654399426 is 624993456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35125 + ... + 50423.

It is an arithmetic number, because the mean of its divisors is an integer number (81816750).

Almost surely, 2^654399426 is an apocalyptic number.

654399426 is an abundant number, since it is smaller than the sum of its proper divisors (654668574).

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

654399426 is a wasteful number, since it uses less digits than its factorization.

654399426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22433.

The product of its digits is 1399680, while the sum is 48.

The square root of 654399426 is about 25581.2319093510. The cubic root of 654399426 is about 868.1890484544.

The spelling of 654399426 in words is "six hundred fifty-four million, three hundred ninety-nine thousand, four hundred twenty-six".