648337392 has 40 divisors (see below), whose sum is σ = 1860969680. Its totient is φ = 216112320.

The previous prime is 648337367. The next prime is 648337397. The reversal of 648337392 is 293733846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648337397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749959 + ... + 750822.

It is an arithmetic number, because the mean of its divisors is an integer number (46524242).

Almost surely, 2^648337392 is an apocalyptic number.

It is an amenable number.

648337392 is an abundant number, since it is smaller than the sum of its proper divisors (1212632288).

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

648337392 is a wasteful number, since it uses less digits than its factorization.

648337392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500798 (or 1500786 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 648337392 is about 25462.4702650784. The cubic root of 648337392 is about 865.4999023816.

The spelling of 648337392 in words is "six hundred forty-eight million, three hundred thirty-seven thousand, three hundred ninety-two".