4002356 has 6 divisors (see below), whose sum is σ = 7004130. Its totient is φ = 2001176.

The previous prime is 4002353. The next prime is 4002389. The reversal of 4002356 is 6532004.

It can be written as a sum of positive squares in only one way, i.e., 3118756 + 883600 = 1766^2 + 940^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500291 + ... + 500298.

It is an arithmetic number, because the mean of its divisors is an integer number (1167355).

Almost surely, 2^4002356 is an apocalyptic number.

It is an amenable number.

4002356 is a deficient number, since it is larger than the sum of its proper divisors (3001774).

4002356 is a wasteful number, since it uses less digits than its factorization.

4002356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000593 (or 1000591 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 4002356 is about 2000.5889132953. The cubic root of 4002356 is about 158.7712650539.

The spelling of 4002356 in words is "four million, two thousand, three hundred fifty-six".