2140636 has 6 divisors (see below), whose sum is σ = 3746120. Its totient is φ = 1070316.

The previous prime is 2140631. The next prime is 2140637. The reversal of 2140636 is 6360412.

2140636 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267576 + ... + 267583.

2^2140636 is an apocalyptic number.

It is an amenable number.

2140636 is a deficient number, since it is larger than the sum of its proper divisors (1605484).

2140636 is a wasteful number, since it uses less digits than its factorization.

2140636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535163 (or 535161 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2140636 is about 1463.0912480088. The cubic root of 2140636 is about 128.8786391418.

The spelling of 2140636 in words is "two million, one hundred forty thousand, six hundred thirty-six".