5640236 has 12 divisors (see below), whose sum is σ = 11280528. Its totient is φ = 2417232.

The previous prime is 5640211. The next prime is 5640251. The reversal of 5640236 is 6320465.

5640236 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100691 + ... + 100746.

It is an arithmetic number, because the mean of its divisors is an integer number (940044).

Almost surely, 2^5640236 is an apocalyptic number.

It is an amenable number.

5640236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5640236 is a wasteful number, since it uses less digits than its factorization.

5640236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201448 (or 201446 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 5640236 is about 2374.9181038512. The cubic root of 5640236 is about 178.0050918040.

The spelling of 5640236 in words is "five million, six hundred forty thousand, two hundred thirty-six".