921360 has 80 divisors (see below), whose sum is σ = 3124800. Its totient is φ = 222720.

The previous prime is 921353. The next prime is 921373. The reversal of 921360 is 63129.

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

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, 2466 + ... + 2814.

It is an arithmetic number, because the mean of its divisors is an integer number (39060).

2⁹²¹³⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 921360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562400).

921360 is an abundant number, since it is smaller than the sum of its proper divisors (2203440).

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

921360 is a wasteful number, since it uses less digits than its factorization.

921360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 921360 is about 959.8749918609. The cubic root of 921360 is about 97.3067836930.

Adding to 921360 its reverse (63129), we get a palindrome (984489).

The spelling of 921360 in words is "nine hundred twenty-one thousand, three hundred sixty".