648148032 has 84 divisors (see below), whose sum is σ = 2123212416. Its totient is φ = 185184000.

The previous prime is 648148003. The next prime is 648148043. The reversal of 648148032 is 230841846.

648148032 is a `hidden beast` number, since 648 + 1 + 4 + 8 + 0 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76344 + ... + 84407.

Almost surely, 2^648148032 is an apocalyptic number.

It is an amenable number.

648148032 is an abundant number, since it is smaller than the sum of its proper divisors (1475064384).

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

648148032 is a wasteful number, since it uses less digits than its factorization.

648148032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160776 (or 160763 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 648148032 is about 25458.7515797613. The cubic root of 648148032 is about 865.4156319477.

Adding to 648148032 its reverse (230841846), we get a palindrome (878989878).

It can be divided in two parts, 64814803 and 2, that added together give a triangular number (64814805 = T₁₁₃₈₅).

The spelling of 648148032 in words is "six hundred forty-eight million, one hundred forty-eight thousand, thirty-two".