201944988 has 60 divisors (see below), whose sum is σ = 603348592. Its totient is φ = 57697920.

The previous prime is 201944983. The next prime is 201945017. The reversal of 201944988 is 889449102.

201944988 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201944983) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42253 + ... + 46788.

Almost surely, 2^201944988 is an apocalyptic number.

201944988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

201944988 is an abundant number, since it is smaller than the sum of its proper divisors (401403604).

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

201944988 is a wasteful number, since it uses less digits than its factorization.

201944988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89064 (or 89053 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 201944988 is about 14210.7349563631. The cubic root of 201944988 is about 586.6931618257.

The spelling of 201944988 in words is "two hundred one million, nine hundred forty-four thousand, nine hundred eighty-eight".