2126002140 has 144 divisors (see below), whose sum is σ = 6715039968. Its totient is φ = 564620544.

The previous prime is 2126002127. The next prime is 2126002147. The reversal of 2126002140 is 412006212.

2126002140 is a `hidden beast` number, since 2 + 1 + 2 + 600 + 21 + 40 = 666.

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 (2126002147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1423234 + ... + 1424726.

It is an arithmetic number, because the mean of its divisors is an integer number (46632222).

Almost surely, 2^2126002140 is an apocalyptic number.

2126002140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2126002140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3357519984).

2126002140 is an abundant number, since it is smaller than the sum of its proper divisors (4589037828).

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

2126002140 is a wasteful number, since it uses less digits than its factorization.

2126002140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2126002140 is about 46108.5907396875. The cubic root of 2126002140 is about 1285.8428642839.

Adding to 2126002140 its reverse (412006212), we get a palindrome (2538008352).

The spelling of 2126002140 in words is "two billion, one hundred twenty-six million, two thousand, one hundred forty".