40778367 has 8 divisors (see below), whose sum is σ = 62138496. Its totient is φ = 23301912.

The previous prime is 40778363. The next prime is 40778369. The reversal of 40778367 is 76387704.

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

It is not a de Polignac number, because 40778367 - 2² = 40778363 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40778363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970893 + ... + 970934.

It is an arithmetic number, because the mean of its divisors is an integer number (7767312).

Almost surely, 2^40778367 is an apocalyptic number.

40778367 is a deficient number, since it is larger than the sum of its proper divisors (21360129).

40778367 is a wasteful number, since it uses less digits than its factorization.

40778367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941837.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 40778367 is about 6385.7941557805. The cubic root of 40778367 is about 344.1992687866.

The spelling of 40778367 in words is "forty million, seven hundred seventy-eight thousand, three hundred sixty-seven".