40255236 has 72 divisors (see below), whose sum is σ = 120067584. Its totient is φ = 11128320.

The previous prime is 40255231. The next prime is 40255253. The reversal of 40255236 is 63255204.

It is not an unprimeable number, because it can be changed into a prime (40255231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5236 + ... + 10388.

Almost surely, 2^40255236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40255236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60033792).

40255236 is an abundant number, since it is smaller than the sum of its proper divisors (79812348).

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

40255236 is a wasteful number, since it uses less digits than its factorization.

40255236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201 (or 5196 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40255236 is about 6344.7014114141. The cubic root of 40255236 is about 342.7210599828.

It can be divided in two parts, 4025 and 5236, that added together give a cube (9261 = 21³).

The spelling of 40255236 in words is "forty million, two hundred fifty-five thousand, two hundred thirty-six".