2142431400 has 48 divisors (see below), whose sum is σ = 6641539200. Its totient is φ = 571314880.

The previous prime is 2142431383. The next prime is 2142431411. The reversal of 2142431400 is 41342412.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1784760 + ... + 1785959.

It is an arithmetic number, because the mean of its divisors is an integer number (138365400).

Almost surely, 2^2142431400 is an apocalyptic number.

2142431400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142431400 is an abundant number, since it is smaller than the sum of its proper divisors (4499107800).

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

2142431400 is a wasteful number, since it uses less digits than its factorization.

2142431400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570738 (or 3570729 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2142431400 is about 46286.4062117594. The cubic root of 2142431400 is about 1289.1466021969.

Adding to 2142431400 its reverse (41342412), we get a palindrome (2183773812).

The spelling of 2142431400 in words is "two billion, one hundred forty-two million, four hundred thirty-one thousand, four hundred".