201969944 has 16 divisors (see below), whose sum is σ = 413120520. Its totient is φ = 91804480.

The previous prime is 201969941. The next prime is 201969973. The reversal of 201969944 is 449969102.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 201969895 and 201969904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201969941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147469 + ... + 1147644.

Almost surely, 2^201969944 is an apocalyptic number.

It is an amenable number.

201969944 is an abundant number, since it is smaller than the sum of its proper divisors (211150576).

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

201969944 is a wasteful number, since it uses less digits than its factorization.

201969944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295130 (or 2295126 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 201969944 is about 14211.6129978268. The cubic root of 201969944 is about 586.7173283270.

The spelling of 201969944 in words is "two hundred one million, nine hundred sixty-nine thousand, nine hundred forty-four".