4002148 has 6 divisors (see below), whose sum is σ = 7003766. Its totient is φ = 2001072.

The previous prime is 4002143. The next prime is 4002169. The reversal of 4002148 is 8412004.

It can be written as a sum of positive squares in only one way, i.e., 3810304 + 191844 = 1952^2 + 438^2 .

It is a super-2 number, since 2×4002148² = 32034377227808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4002143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500265 + ... + 500272.

Almost surely, 2^4002148 is an apocalyptic number.

It is an amenable number.

4002148 is a deficient number, since it is larger than the sum of its proper divisors (3001618).

4002148 is a wasteful number, since it uses less digits than its factorization.

4002148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000541 (or 1000539 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4002148 is about 2000.5369279271. The cubic root of 4002148 is about 158.7685145910.

The spelling of 4002148 in words is "four million, two thousand, one hundred forty-eight".