10201988 has 6 divisors (see below), whose sum is σ = 17853486. Its totient is φ = 5100992.

The previous prime is 10201987. The next prime is 10202009. The reversal of 10201988 is 88910201.

10201988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8952064 + 1249924 = 2992^2 + 1118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10201988.

It is not an unprimeable number, because it can be changed into a prime (10201987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275245 + ... + 1275252.

It is an arithmetic number, because the mean of its divisors is an integer number (2975581).

Almost surely, 2^10201988 is an apocalyptic number.

It is an amenable number.

10201988 is a deficient number, since it is larger than the sum of its proper divisors (7651498).

10201988 is a wasteful number, since it uses less digits than its factorization.

10201988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550501 (or 2550499 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 10201988 is about 3194.0551028434. The cubic root of 10201988 is about 216.8843770913.

The spelling of 10201988 in words is "ten million, two hundred one thousand, nine hundred eighty-eight".