40736256 has 80 divisors (see below), whose sum is σ = 118438848. Its totient is φ = 12339200.

The previous prime is 40736249. The next prime is 40736257. The reversal of 40736256 is 65263704.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40736257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15691 + ... + 18101.

Almost surely, 2^40736256 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 40736256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59219424).

40736256 is an abundant number, since it is smaller than the sum of its proper divisors (77702592).

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

40736256 is a wasteful number, since it uses less digits than its factorization.

40736256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443 (or 2427 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 40736256 is about 6382.4960634535. The cubic root of 40736256 is about 344.0807454227.

It can be divided in two parts, 407 and 36256, that added together give a palindrome (36663).

The spelling of 40736256 in words is "forty million, seven hundred thirty-six thousand, two hundred fifty-six".