40582878 has 48 divisors (see below), whose sum is σ = 94993920. Its totient is φ = 11524464.

The previous prime is 40582877. The next prime is 40582889. The reversal of 40582878 is 87828504.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40582877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65253 + ... + 65871.

It is an arithmetic number, because the mean of its divisors is an integer number (1979040).

Almost surely, 2^40582878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40582878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47496960).

40582878 is an abundant number, since it is smaller than the sum of its proper divisors (54411042).

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

40582878 is a wasteful number, since it uses less digits than its factorization.

40582878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 40582878 is about 6370.4692134881. The cubic root of 40582878 is about 343.6483640902.

The spelling of 40582878 in words is "forty million, five hundred eighty-two thousand, eight hundred seventy-eight".