41991478 has 32 divisors (see below), whose sum is σ = 67716000. Its totient is φ = 19493376.

The previous prime is 41991461. The next prime is 41991497. The reversal of 41991478 is 87419914.

It is a Harshad number since it is a multiple of its sum of digits (43).

Its product of digits (72576) is a multiple of the sum of its prime divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281748 + ... + 281896.

It is an arithmetic number, because the mean of its divisors is an integer number (2116125).

Almost surely, 2^41991478 is an apocalyptic number.

41991478 is a deficient number, since it is larger than the sum of its proper divisors (25724522).

41991478 is a wasteful number, since it uses less digits than its factorization.

41991478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its digits is 72576, while the sum is 43.

The square root of 41991478 is about 6480.0831784785. The cubic root of 41991478 is about 347.5791528197.

The spelling of 41991478 in words is "forty-one million, nine hundred ninety-one thousand, four hundred seventy-eight".