654780672 has 360 divisors, whose sum is σ = 2409925056. Its totient is φ = 172191744.

The previous prime is 654780671. The next prime is 654780719. The reversal of 654780672 is 276087456.

It is not an unprimeable number, because it can be changed into a prime (654780671) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1886803 + ... + 1887149.

Almost surely, 2^654780672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654780672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204962528).

654780672 is an abundant number, since it is smaller than the sum of its proper divisors (1755144384).

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

654780672 is a wasteful number, since it uses less digits than its factorization.

654780672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 654780672 is about 25588.6824983234. The cubic root of 654780672 is about 868.3576148945.

The spelling of 654780672 in words is "six hundred fifty-four million, seven hundred eighty thousand, six hundred seventy-two".