2140636430 has 32 divisors (see below), whose sum is σ = 4082265216. Its totient is φ = 805400064.

The previous prime is 2140636429. The next prime is 2140636441. The reversal of 2140636430 is 346360412.

It is a junction number, because it is equal to n+sod(n) for n = 2140636393 and 2140636402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411707 + ... + 416873.

It is an arithmetic number, because the mean of its divisors is an integer number (127570788).

Almost surely, 2^2140636430 is an apocalyptic number.

2140636430 is a deficient number, since it is larger than the sum of its proper divisors (1941628786).

2140636430 is a wasteful number, since it uses less digits than its factorization.

2140636430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 2140636430 is about 46267.0123306012. The cubic root of 2140636430 is about 1288.7864777126.

Adding to 2140636430 its reverse (346360412), we get a palindrome (2486996842).

The spelling of 2140636430 in words is "two billion, one hundred forty million, six hundred thirty-six thousand, four hundred thirty".