40244256 has 96 divisors (see below), whose sum is σ = 126443520. Its totient is φ = 12379392.

The previous prime is 40244251. The next prime is 40244297. The reversal of 40244256 is 65244204.

40244256 is a `hidden beast` number, since 402 + 4 + 4 + 256 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40244251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9441 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (1317120).

Almost surely, 2^40244256 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 40244256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63221760).

40244256 is an abundant number, since it is smaller than the sum of its proper divisors (86199264).

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

40244256 is a wasteful number, since it uses less digits than its factorization.

40244256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 40244256 is about 6343.8360634556. The cubic root of 40244256 is about 342.6898970021.

The spelling of 40244256 in words is "forty million, two hundred forty-four thousand, two hundred fifty-six".