401001102 has 24 divisors (see below), whose sum is σ = 870462840. Its totient is φ = 133416720.

The previous prime is 401001037. The next prime is 401001109. The reversal of 401001102 is 201100104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401001109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10852 + ... + 30327.

It is an arithmetic number, because the mean of its divisors is an integer number (36269285).

Almost surely, 2^401001102 is an apocalyptic number.

401001102 is an abundant number, since it is smaller than the sum of its proper divisors (469461738).

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

401001102 is a wasteful number, since it uses less digits than its factorization.

401001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41728 (or 41725 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 401001102 is about 20025.0119101088. The cubic root of 401001102 is about 737.4204695241.

Adding to 401001102 its reverse (201100104), we get a palindrome (602101206).

The spelling of 401001102 in words is "four hundred one million, one thousand, one hundred two".