3621448 has 32 divisors (see below), whose sum is σ = 7108920. Its totient is φ = 1728000.

The previous prime is 3621403. The next prime is 3621461. The reversal of 3621448 is 8441263.

It can be written as a sum of positive squares in 4 ways, for example, as 228484 + 3392964 = 478^2 + 1842^2 .

It is a super-2 number, since 2×3621448² = 26229771233408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19918 + ... + 20098.

Almost surely, 2^3621448 is an apocalyptic number.

It is an amenable number.

3621448 is a deficient number, since it is larger than the sum of its proper divisors (3487472).

3621448 is a wasteful number, since it uses less digits than its factorization.

3621448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 285 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 3621448 is about 1903.0102469509. The cubic root of 3621448 is about 153.5656507754.

It can be divided in two parts, 362 and 1448, that multiplied together give a square (524176 = 724²).

The spelling of 3621448 in words is "three million, six hundred twenty-one thousand, four hundred forty-eight".