4021368 has 32 divisors (see below), whose sum is σ = 10827600. Its totient is φ = 1237248.

The previous prime is 4021357. The next prime is 4021379. The reversal of 4021368 is 8631204.

It is a happy number.

4021368 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4021357) and next prime (4021379).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6133 + ... + 6756.

Almost surely, 2^4021368 is an apocalyptic number.

It is an amenable number.

4021368 is an abundant number, since it is smaller than the sum of its proper divisors (6806232).

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

4021368 is a wasteful number, since it uses less digits than its factorization.

4021368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12911 (or 12907 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 4021368 is about 2005.3348847512. The cubic root of 4021368 is about 159.0222665703.

It can be divided in two parts, 402 and 1368, that added together give a triangular number (1770 = T₅₉).

The spelling of 4021368 in words is "four million, twenty-one thousand, three hundred sixty-eight".