2140340404 has 12 divisors (see below), whose sum is σ = 3809080800. Its totient is φ = 1052031608.

The previous prime is 2140340387. The next prime is 2140340407. The reversal of 2140340404 is 4040430412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140340407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4534384 + ... + 4534855.

It is an arithmetic number, because the mean of its divisors is an integer number (317423400).

Almost surely, 2^2140340404 is an apocalyptic number.

It is an amenable number.

2140340404 is a deficient number, since it is larger than the sum of its proper divisors (1668740396).

2140340404 is a wasteful number, since it uses less digits than its factorization.

2140340404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069302 (or 9069300 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2140340404 is about 46263.8131156523. The cubic root of 2140340404 is about 1288.7270667374.

Adding to 2140340404 its reverse (4040430412), we get a palindrome (6180770816).

The spelling of 2140340404 in words is "two billion, one hundred forty million, three hundred forty thousand, four hundred four".