4640148 has 36 divisors (see below), whose sum is σ = 11927188. Its totient is φ = 1520640.

The previous prime is 4640147. The next prime is 4640159. The reversal of 4640148 is 8410464.

4640148 is a `hidden beast` number, since 4 + 640 + 14 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51984 + 4588164 = 228^2 + 2142^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1140 + ... + 3252.

Almost surely, 2^4640148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4640148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5963594).

4640148 is an abundant number, since it is smaller than the sum of its proper divisors (7287040).

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

4640148 is a wasteful number, since it uses less digits than its factorization.

4640148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184 (or 2179 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 4640148 is about 2154.1002762174. The cubic root of 4640148 is about 166.7927916420.

The spelling of 4640148 in words is "four million, six hundred forty thousand, one hundred forty-eight".