648370436 has 48 divisors (see below), whose sum is σ = 1321466496. Its totient is φ = 272623104.

The previous prime is 648370397. The next prime is 648370439. The reversal of 648370436 is 634073846.

It is a junction number, because it is equal to n+sod(n) for n = 648370393 and 648370402.

It is not an unprimeable number, because it can be changed into a prime (648370439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363980 + ... + 365756.

It is an arithmetic number, because the mean of its divisors is an integer number (27530552).

Almost surely, 2^648370436 is an apocalyptic number.

It is an amenable number.

648370436 is an abundant number, since it is smaller than the sum of its proper divisors (673096060).

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

648370436 is a wasteful number, since it uses less digits than its factorization.

648370436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 648370436 is about 25463.1191333662. The cubic root of 648370436 is about 865.5146061933.

The spelling of 648370436 in words is "six hundred forty-eight million, three hundred seventy thousand, four hundred thirty-six".