654621234 has 64 divisors (see below), whose sum is σ = 1408803840. Its totient is φ = 202325760.

The previous prime is 654621221. The next prime is 654621257. The reversal of 654621234 is 432126456.

It is a junction number, because it is equal to n+sod(n) for n = 654621195 and 654621204.

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 31 ways as a sum of consecutive naturals, for example, 846472 + ... + 847244.

It is an arithmetic number, because the mean of its divisors is an integer number (22012560).

Almost surely, 2^654621234 is an apocalyptic number.

654621234 is an abundant number, since it is smaller than the sum of its proper divisors (754182606).

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

654621234 is a wasteful number, since it uses less digits than its factorization.

654621234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its digits is 34560, while the sum is 33.

The square root of 654621234 is about 25585.5669079268. The cubic root of 654621234 is about 868.2871279634.

The spelling of 654621234 in words is "six hundred fifty-four million, six hundred twenty-one thousand, two hundred thirty-four".