648740562 has 16 divisors (see below), whose sum is σ = 1304651712. Its totient is φ = 215051760.

The previous prime is 648740557. The next prime is 648740593. The reversal of 648740562 is 265047846.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297598 + ... + 299769.

It is an arithmetic number, because the mean of its divisors is an integer number (81540732).

Almost surely, 2^648740562 is an apocalyptic number.

648740562 is an abundant number, since it is smaller than the sum of its proper divisors (655911150).

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

648740562 is a wasteful number, since it uses less digits than its factorization.

648740562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597553.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 648740562 is about 25470.3859805854. The cubic root of 648740562 is about 865.6792695313.

The spelling of 648740562 in words is "six hundred forty-eight million, seven hundred forty thousand, five hundred sixty-two".