40770218 has 8 divisors (see below), whose sum is σ = 61509348. Its totient is φ = 20267104.

The previous prime is 40770217. The next prime is 40770221. The reversal of 40770218 is 81207704.

40770218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40284409 + 485809 = 6347^2 + 697^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40770217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58571 + ... + 59262.

Almost surely, 2^40770218 is an apocalyptic number.

40770218 is a deficient number, since it is larger than the sum of its proper divisors (20739130).

40770218 is a wasteful number, since it uses less digits than its factorization.

40770218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118008.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 40770218 is about 6385.1560670042. The cubic root of 40770218 is about 344.1763394173.

The spelling of 40770218 in words is "forty million, seven hundred seventy thousand, two hundred eighteen".