4021912 has 16 divisors (see below), whose sum is σ = 7669800. Its totient is φ = 1976640.

The previous prime is 4021907. The next prime is 4021933. The reversal of 4021912 is 2191204.

It is a super-2 number, since 2×4021912² = 32351552271488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4021912.

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 3 ways as a sum of consecutive naturals, for example, 3789 + ... + 4732.

Almost surely, 2^4021912 is an apocalyptic number.

It is an amenable number.

4021912 is a deficient number, since it is larger than the sum of its proper divisors (3647888).

4021912 is a wasteful number, since it uses less digits than its factorization.

4021912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586 (or 8582 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 4021912 is about 2005.4705183572. The cubic root of 4021912 is about 159.0294369505.

It can be divided in two parts, 40 and 21912, that added together give a cube (21952 = 28³).

The spelling of 4021912 in words is "four million, twenty-one thousand, nine hundred twelve".