40708278 has 64 divisors (see below), whose sum is σ = 98542080. Its totient is φ = 12381984.

The previous prime is 40708273. The next prime is 40708309. The reversal of 40708278 is 87280704.

40708278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40708271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72025 + ... + 72587.

It is an arithmetic number, because the mean of its divisors is an integer number (1539720).

Almost surely, 2^40708278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40708278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49271040).

40708278 is an abundant number, since it is smaller than the sum of its proper divisors (57833802).

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

40708278 is a wasteful number, since it uses less digits than its factorization.

40708278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 40708278 is about 6380.3039112569. The cubic root of 40708278 is about 344.0019548744.

The spelling of 40708278 in words is "forty million, seven hundred eight thousand, two hundred seventy-eight".