40978336 has 48 divisors (see below), whose sum is σ = 93744000. Its totient is φ = 17268480.

The previous prime is 40978309. The next prime is 40978361. The reversal of 40978336 is 63387904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12165 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (1953000).

Almost surely, 2^40978336 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 40978336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46872000).

40978336 is an abundant number, since it is smaller than the sum of its proper divisors (52765664).

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

40978336 is a wasteful number, since it uses less digits than its factorization.

40978336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 40978336 is about 6401.4323397190. The cubic root of 40978336 is about 344.7609798599.

It can be divided in two parts, 40978 and 336, that added together give a palindrome (41314).

The spelling of 40978336 in words is "forty million, nine hundred seventy-eight thousand, three hundred thirty-six".