2154320 has 40 divisors (see below), whose sum is σ = 5725824. Its totient is φ = 738432.

The previous prime is 2154319. The next prime is 2154329. The reversal of 2154320 is 234512.

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154329) 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, 1364 + ... + 2483.

2^2154320 is an apocalyptic number.

2154320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154320 is an abundant number, since it is smaller than the sum of its proper divisors (3571504).

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

2154320 is a wasteful number, since it uses less digits than its factorization.

2154320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867 (or 3861 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2154320 is about 1467.7601983975. The cubic root of 2154320 is about 129.1526746319.

Adding to 2154320 its reverse (234512), we get a palindrome (2388832).

The spelling of 2154320 in words is "two million, one hundred fifty-four thousand, three hundred twenty".