654404620 has 12 divisors (see below), whose sum is σ = 1374249744. Its totient is φ = 261761840.

The previous prime is 654404609. The next prime is 654404627. The reversal of 654404620 is 26404456.

It is not an unprimeable number, because it can be changed into a prime (654404627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16360096 + ... + 16360135.

It is an arithmetic number, because the mean of its divisors is an integer number (114520812).

Almost surely, 2^654404620 is an apocalyptic number.

It is an amenable number.

654404620 is an abundant number, since it is smaller than the sum of its proper divisors (719845124).

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

654404620 is a wasteful number, since it uses less digits than its factorization.

654404620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32720240 (or 32720238 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 654404620 is about 25581.3334288891. Note that the first 3 decimals coincide. The cubic root of 654404620 is about 868.1913454012.

The spelling of 654404620 in words is "six hundred fifty-four million, four hundred four thousand, six hundred twenty".