40200256 has 28 divisors (see below), whose sum is σ = 80792320. Its totient is φ = 19843200.

The previous prime is 40200253. The next prime is 40200269. The reversal of 40200256 is 65200204.

It is not an unprimeable number, because it can be changed into a prime (40200253) 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, 1081 + ... + 9031.

It is an arithmetic number, because the mean of its divisors is an integer number (2885440).

Almost surely, 2^40200256 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 40200256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40396160).

40200256 is an abundant number, since it is smaller than the sum of its proper divisors (40592064).

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

40200256 is an equidigital number, since it uses as much as digits as its factorization.

40200256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042 (or 8032 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40200256 is about 6340.3671817963. The cubic root of 40200256 is about 342.5649611273.

The spelling of 40200256 in words is "forty million, two hundred thousand, two hundred fifty-six".