4472644 has 18 divisors (see below), whose sum is σ = 8604302. Its totient is φ = 2032800.

The previous prime is 4472627. The next prime is 4472651. The reversal of 4472644 is 4462744.

It can be written as a sum of positive squares in only one way, i.e., 4460544 + 12100 = 2112^2 + 110^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4137 + ... + 5104.

Almost surely, 2^4472644 is an apocalyptic number.

4472644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4472644 is a deficient number, since it is larger than the sum of its proper divisors (4131658).

4472644 is a wasteful number, since it uses less digits than its factorization.

4472644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267 (or 9254 counting only the distinct ones).

The product of its digits is 21504, while the sum is 31.

The square root of 4472644 is about 2114.8626432939. The cubic root of 4472644 is about 164.7611358539.

The spelling of 4472644 in words is "four million, four hundred seventy-two thousand, six hundred forty-four".