40574778 has 8 divisors (see below), whose sum is σ = 81149568. Its totient is φ = 13524924.

The previous prime is 40574777. The next prime is 40574803. The reversal of 40574778 is 87747504.

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

40574778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40574773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3381226 + ... + 3381237.

It is an arithmetic number, because the mean of its divisors is an integer number (10143696).

Almost surely, 2^40574778 is an apocalyptic number.

40574778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40574778 is a wasteful number, since it uses less digits than its factorization.

40574778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6762468.

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 40574778 is about 6369.8334358129. The cubic root of 40574778 is about 343.6254994644.

The spelling of 40574778 in words is "forty million, five hundred seventy-four thousand, seven hundred seventy-eight".