2140034040 has 64 divisors (see below), whose sum is σ = 7133450400. Its totient is φ = 570675456.

The previous prime is 2140034027. The next prime is 2140034041. The reversal of 2140034040 is 404300412.

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 (2140034041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989677 + ... + 991836.

Almost surely, 2^2140034040 is an apocalyptic number.

2140034040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140034040 is an abundant number, since it is smaller than the sum of its proper divisors (4993416360).

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

2140034040 is a wasteful number, since it uses less digits than its factorization.

2140034040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981533 (or 1981523 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2140034040 is about 46260.5019428021. The cubic root of 2140034040 is about 1288.6655752074.

Adding to 2140034040 its reverse (404300412), we get a palindrome (2544334452).

The spelling of 2140034040 in words is "two billion, one hundred forty million, thirty-four thousand, forty".