2445216 has 24 divisors (see below), whose sum is σ = 6418944. Its totient is φ = 815040.

The previous prime is 2445211. The next prime is 2445217. The reversal of 2445216 is 6125442.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 4² + 4⁹ + 5⁷ + 2²¹ + 1 + 6⁵ .

It is not an unprimeable number, because it can be changed into a prime (2445211) 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, 12640 + ... + 12831.

It is an arithmetic number, because the mean of its divisors is an integer number (267456).

2^2445216 is an apocalyptic number.

It is an amenable number.

2445216 is an abundant number, since it is smaller than the sum of its proper divisors (3973728).

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

2445216 is a wasteful number, since it uses less digits than its factorization.

2445216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25484 (or 25476 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 2445216 is about 1563.7186447696. The cubic root of 2445216 is about 134.7221721110.

It can be divided in two parts, 244 and 5216, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 2445216 in words is "two million, four hundred forty-five thousand, two hundred sixteen".