648095220 has 72 divisors (see below), whose sum is σ = 2007742464. Its totient is φ = 169146048.

The previous prime is 648095213. The next prime is 648095237. The reversal of 648095220 is 22590846.

It is a happy number.

648095220 is a `hidden beast` number, since 648 + 0 + 9 + 5 + 2 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29844 + ... + 46763.

It is an arithmetic number, because the mean of its divisors is an integer number (27885312).

Almost surely, 2^648095220 is an apocalyptic number.

648095220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648095220 is an abundant number, since it is smaller than the sum of its proper divisors (1359647244).

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

648095220 is a wasteful number, since it uses less digits than its factorization.

648095220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76669 (or 76664 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 648095220 is about 25457.7143514495. The cubic root of 648095220 is about 865.3921262209.

It can be divided in two parts, 6480 and 95220, that multiplied together give a square (617025600 = 24840²).

The spelling of 648095220 in words is "six hundred forty-eight million, ninety-five thousand, two hundred twenty".