648202248 has 48 divisors (see below), whose sum is σ = 1858818780. Its totient is φ = 203357184.

The previous prime is 648202193. The next prime is 648202249. The reversal of 648202248 is 842202846.

It is a happy number.

648202248 is a `hidden beast` number, since 648 + 2 + 0 + 2 + 2 + 4 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 586705284 + 61496964 = 24222^2 + 7842^2 .

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

It is not an unprimeable number, because it can be changed into a prime (648202249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263565 + ... + 266012.

Almost surely, 2^648202248 is an apocalyptic number.

648202248 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

648202248 is an abundant number, since it is smaller than the sum of its proper divisors (1210616532).

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

648202248 is a wasteful number, since it uses less digits than its factorization.

648202248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529606 (or 529599 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 648202248 is about 25459.8163386934. The cubic root of 648202248 is about 865.4397612430.

It can be divided in two parts, 648 and 202248, that multiplied together give a square (131056704 = 11448²).

The spelling of 648202248 in words is "six hundred forty-eight million, two hundred two thousand, two hundred forty-eight".