40807478 has 8 divisors (see below), whose sum is σ = 64432920. Its totient is φ = 19329840.

The previous prime is 40807453. The next prime is 40807483. The reversal of 40807478 is 87470804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1073881 = 40807478 / (4 + 0 + 8 + 0 + 7 + 4 + 7 + 8).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536903 + ... + 536978.

It is an arithmetic number, because the mean of its divisors is an integer number (8054115).

Almost surely, 2^40807478 is an apocalyptic number.

40807478 is a deficient number, since it is larger than the sum of its proper divisors (23625442).

40807478 is a wasteful number, since it uses less digits than its factorization.

40807478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073902.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 40807478 is about 6388.0731054051. The cubic root of 40807478 is about 344.2811553540.

The spelling of 40807478 in words is "forty million, eight hundred seven thousand, four hundred seventy-eight".