2153472 has 44 divisors (see below), whose sum is σ = 5747976. Its totient is φ = 716800.

The previous prime is 2153471. The next prime is 2153491. The reversal of 2153472 is 2743512.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 2¹⁵ + 1 + 5⁹ + 3⁹ + 4² + 7⁵ + 2¹⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2722 + ... + 3422.

2^2153472 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 2153472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2873988).

2153472 is an abundant number, since it is smaller than the sum of its proper divisors (3594504).

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

2153472 is an equidigital number, since it uses as much as digits as its factorization.

2153472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 706 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 2153472 is about 1467.4712944382. The cubic root of 2153472 is about 129.1357263850.

Adding to 2153472 its reverse (2743512), we get a palindrome (4896984).

The spelling of 2153472 in words is "two million, one hundred fifty-three thousand, four hundred seventy-two".