648412992 has 112 divisors (see below), whose sum is σ = 1913412480. Its totient is φ = 215322624.

The previous prime is 648412931. The next prime is 648413011. The reversal of 648412992 is 299214846.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609453 + ... + 610515.

It is an arithmetic number, because the mean of its divisors is an integer number (17084040).

Almost surely, 2^648412992 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 648412992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956706240).

648412992 is an abundant number, since it is smaller than the sum of its proper divisors (1264999488).

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

648412992 is a wasteful number, since it uses less digits than its factorization.

648412992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1421 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 648412992 is about 25463.9547596205. The cubic root of 648412992 is about 865.5335418880.

The spelling of 648412992 in words is "six hundred forty-eight million, four hundred twelve thousand, nine hundred ninety-two".