2142001404 has 72 divisors (see below), whose sum is σ = 5705940240. Its totient is φ = 675654912.

The previous prime is 2142001391. The next prime is 2142001409. The reversal of 2142001404 is 4041002412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142001409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1118752 + ... + 1120664.

It is an arithmetic number, because the mean of its divisors is an integer number (79249170).

Almost surely, 2^2142001404 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 2142001404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2852970120).

2142001404 is an abundant number, since it is smaller than the sum of its proper divisors (3563938836).

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

2142001404 is a wasteful number, since it uses less digits than its factorization.

2142001404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579 (or 3574 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2142001404 is about 46281.7610295892. The cubic root of 2142001404 is about 1289.0603505093.

Adding to 2142001404 its reverse (4041002412), we get a palindrome (6183003816).

The spelling of 2142001404 in words is "two billion, one hundred forty-two million, one thousand, four hundred four".