4021084 has 24 divisors (see below), whose sum is σ = 7476560. Its totient is φ = 1886976.

The previous prime is 4021081. The next prime is 4021091. The reversal of 4021084 is 4801204.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11764 + ... + 12100.

Almost surely, 2^4021084 is an apocalyptic number.

It is an amenable number.

4021084 is a deficient number, since it is larger than the sum of its proper divisors (3455476).

4021084 is a wasteful number, since it uses less digits than its factorization.

4021084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

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

The square root of 4021084 is about 2005.2640723855. The cubic root of 4021084 is about 159.0185229531.

Adding to 4021084 its reverse (4801204), we get a palindrome (8822288).

The spelling of 4021084 in words is "four million, twenty-one thousand, eighty-four".