7201644 has 24 divisors (see below), whose sum is σ = 16905840. Its totient is φ = 2385984.

The previous prime is 7201639. The next prime is 7201651. The reversal of 7201644 is 4461027.

It is an Ulam number.

It is a congruent number.

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, 342 + ... + 3810.

It is an arithmetic number, because the mean of its divisors is an integer number (704410).

Almost surely, 2^7201644 is an apocalyptic number.

It is an amenable number.

7201644 is an abundant number, since it is smaller than the sum of its proper divisors (9704196).

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

7201644 is a wasteful number, since it uses less digits than its factorization.

7201644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649 (or 3647 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 7201644 is about 2683.5878968277. The cubic root of 7201644 is about 193.1125726966.

The spelling of 7201644 in words is "seven million, two hundred one thousand, six hundred forty-four".