648240498 has 24 divisors (see below), whose sum is σ = 1487140668. Its totient is φ = 203369472.

The previous prime is 648240479. The next prime is 648240503. The reversal of 648240498 is 894042846.

It can be written as a sum of positive squares in 2 ways, for example, as 624650049 + 23590449 = 24993^2 + 4857^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1058911 + ... + 1059522.

Almost surely, 2^648240498 is an apocalyptic number.

648240498 is an abundant number, since it is smaller than the sum of its proper divisors (838900170).

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

648240498 is a wasteful number, since it uses less digits than its factorization.

648240498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118458 (or 2118455 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 648240498 is about 25460.5675113498. The cubic root of 648240498 is about 865.4567839237.

The spelling of 648240498 in words is "six hundred forty-eight million, two hundred forty thousand, four hundred ninety-eight".