40994478 has 48 divisors (see below), whose sum is σ = 105978960. Its totient is φ = 11711952.

The previous prime is 40994467. The next prime is 40994507. The reversal of 40994478 is 87449904.

40994478 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 an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5101 + ... + 10392.

It is an arithmetic number, because the mean of its divisors is an integer number (2207895).

Almost surely, 2^40994478 is an apocalyptic number.

40994478 is an abundant number, since it is smaller than the sum of its proper divisors (64984482).

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

40994478 is a wasteful number, since it uses less digits than its factorization.

40994478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15518 (or 15505 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 40994478 is about 6402.6930271566. The cubic root of 40994478 is about 344.8062428102.

The spelling of 40994478 in words is "forty million, nine hundred ninety-four thousand, four hundred seventy-eight".