385272648 has 24 divisors (see below), whose sum is σ = 1043446950. Its totient is φ = 128424192.

The previous prime is 385272623. The next prime is 385272673. The reversal of 385272648 is 846272583.

385272648 is a `hidden beast` number, since 385 + 2 + 7 + 264 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (385272623) and next prime (385272673).

It can be written as a sum of positive squares in only one way, i.e., 233539524 + 151733124 = 15282^2 + 12318^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2675433 + ... + 2675576.

Almost surely, 2^385272648 is an apocalyptic number.

It is an amenable number.

385272648 is an abundant number, since it is smaller than the sum of its proper divisors (658174302).

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

385272648 is a wasteful number, since it uses less digits than its factorization.

385272648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351021 (or 5351014 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 385272648 is about 19628.3633551043. The cubic root of 385272648 is about 727.6503221450.

The spelling of 385272648 in words is "three hundred eighty-five million, two hundred seventy-two thousand, six hundred forty-eight".