4021488 has 100 divisors (see below), whose sum is σ = 12153240. Its totient is φ = 1282176.

The previous prime is 4021477. The next prime is 4021513. The reversal of 4021488 is 8841204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

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 19 ways as a sum of consecutive naturals, for example, 37531 + ... + 37637.

Almost surely, 2^4021488 is an apocalyptic number.

4021488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6076620).

4021488 is an abundant number, since it is smaller than the sum of its proper divisors (8131752).

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

4021488 is a wasteful number, since it uses less digits than its factorization.

4021488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 4021488 is about 2005.3648047176. The cubic root of 4021488 is about 159.0238483274.

It can be divided in two parts, 40 and 21488, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 4021488 in words is "four million, twenty-one thousand, four hundred eighty-eight".