40785278 has 16 divisors (see below), whose sum is σ = 65278224. Its totient is φ = 19044480.

The previous prime is 40785263. The next prime is 40785301. The reversal of 40785278 is 87258704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 9032.

It is an arithmetic number, because the mean of its divisors is an integer number (4079889).

Almost surely, 2^40785278 is an apocalyptic number.

40785278 is a deficient number, since it is larger than the sum of its proper divisors (24492946).

40785278 is a wasteful number, since it uses less digits than its factorization.

40785278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9307.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 40785278 is about 6386.3352558412. The cubic root of 40785278 is about 344.2187123212.

The spelling of 40785278 in words is "forty million, seven hundred eighty-five thousand, two hundred seventy-eight".