648353076 has 48 divisors (see below), whose sum is σ = 1733660544. Its totient is φ = 184738176.

The previous prime is 648353071. The next prime is 648353113. The reversal of 648353076 is 670353846.

It is a super-2 number, since 2×648353076² = 840723422317323552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648353071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20986 + ... + 41678.

It is an arithmetic number, because the mean of its divisors is an integer number (36117928).

Almost surely, 2^648353076 is an apocalyptic number.

It is an amenable number.

648353076 is an abundant number, since it is smaller than the sum of its proper divisors (1085307468).

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

648353076 is a wasteful number, since it uses less digits than its factorization.

648353076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21080 (or 21078 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 648353076 is about 25462.7782459024. The cubic root of 648353076 is about 865.5068814592.

The spelling of 648353076 in words is "six hundred forty-eight million, three hundred fifty-three thousand, seventy-six".