5645472 has 96 divisors (see below), whose sum is σ = 17547264. Its totient is φ = 1555200.

The previous prime is 5645447. The next prime is 5645473. The reversal of 5645472 is 2745465.

5645472 = T₁₀₃ + T₁₀₄ + ... + T₃₂₆.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20697 + ... + 20967.

It is an arithmetic number, because the mean of its divisors is an integer number (182784).

Almost surely, 2^5645472 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 5645472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8773632).

5645472 is an abundant number, since it is smaller than the sum of its proper divisors (11901792).

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

5645472 is a wasteful number, since it uses less digits than its factorization.

5645472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 314 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 5645472 is about 2376.0202019343. The cubic root of 5645472 is about 178.0601572538.

The spelling of 5645472 in words is "five million, six hundred forty-five thousand, four hundred seventy-two".