201562644 has 48 divisors (see below), whose sum is σ = 494827200. Its totient is φ = 63764736.

The previous prime is 201562637. The next prime is 201562667. The reversal of 201562644 is 446265102.

201562644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15624 + ... + 25440.

It is an arithmetic number, because the mean of its divisors is an integer number (10308900).

Almost surely, 2^201562644 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 201562644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247413600).

201562644 is an abundant number, since it is smaller than the sum of its proper divisors (293264556).

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

201562644 is a wasteful number, since it uses less digits than its factorization.

201562644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9912 (or 9910 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 201562644 is about 14197.2759358970. The cubic root of 201562644 is about 586.3226643457.

The spelling of 201562644 in words is "two hundred one million, five hundred sixty-two thousand, six hundred forty-four".