4021080 has 64 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 918912.

The previous prime is 4021079. The next prime is 4021081. The reversal of 4021080 is 801204.

It is an interprime number because it is at equal distance from previous prime (4021079) and next prime (4021081).

It is a Harshad number since it is a multiple of its sum of digits (15).

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554 + ... + 3233.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

Almost surely, 2^4021080 is an apocalyptic number.

4021080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4021080 is an abundant number, since it is smaller than the sum of its proper divisors (9768360).

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

4021080 is a wasteful number, since it uses less digits than its factorization.

4021080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808 (or 4804 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 4021080 is about 2005.2630750104. The cubic root of 4021080 is about 159.0184702249.

Adding to 4021080 its reverse (801204), we get a palindrome (4822284).

The spelling of 4021080 in words is "four million, twenty-one thousand, eighty".