360021 has 8 divisors (see below), whose sum is σ = 491904. Its totient is φ = 234080.

The previous prime is 360007. The next prime is 360023. The reversal of 360021 is 120063.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 360021 - 2⁹ = 359509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 359979 and 360006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (360023) 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, 1341 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (61488).

2³⁶⁰⁰²¹ is an apocalyptic number.

It is an amenable number.

360021 is a deficient number, since it is larger than the sum of its proper divisors (131883).

360021 is a wasteful number, since it uses less digits than its factorization.

360021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 360021 is about 600.0174997448. The cubic root of 360021 is about 71.1392492992.

Adding to 360021 its reverse (120063), we get a palindrome (480084).

The spelling of 360021 in words is "three hundred sixty thousand, twenty-one".