4021360 has 80 divisors (see below), whose sum is σ = 10999296. Its totient is φ = 1338624.

The previous prime is 4021357. The next prime is 4021379. The reversal of 4021360 is 631204.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23997 + ... + 24163.

Almost surely, 2^4021360 is an apocalyptic number.

4021360 is a gapful number since it is divisible by the number (40) 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 4021360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5499648).

4021360 is an abundant number, since it is smaller than the sum of its proper divisors (6977936).

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

4021360 is a wasteful number, since it uses less digits than its factorization.

4021360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 4021360 is about 2005.3328900709. The cubic root of 4021360 is about 159.0221611187.

Adding to 4021360 its reverse (631204), we get a palindrome (4652564).

The spelling of 4021360 in words is "four million, twenty-one thousand, three hundred sixty".