654770240 has 28 divisors (see below), whose sum is σ = 1559172396. Its totient is φ = 261907968.

The previous prime is 654770231. The next prime is 654770243. The reversal of 654770240 is 42077456.

It can be written as a sum of positive squares in 2 ways, for example, as 98565184 + 556205056 = 9928^2 + 23584^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 654770240.

It is not an unprimeable number, because it can be changed into a prime (654770243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022759 + ... + 1023398.

Almost surely, 2^654770240 is an apocalyptic number.

It is an amenable number.

654770240 is an abundant number, since it is smaller than the sum of its proper divisors (904402156).

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

654770240 is a wasteful number, since it uses less digits than its factorization.

654770240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046174 (or 2046164 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 654770240 is about 25588.4786573958. The cubic root of 654770240 is about 868.3530032970.

The spelling of 654770240 in words is "six hundred fifty-four million, seven hundred seventy thousand, two hundred forty".