40457066 has 16 divisors (see below), whose sum is σ = 66875424. Its totient is φ = 18237744.

The previous prime is 40457041. The next prime is 40457071. The reversal of 40457066 is 66075404.

40457066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16976 + ... + 19211.

It is an arithmetic number, because the mean of its divisors is an integer number (4179714).

Almost surely, 2^40457066 is an apocalyptic number.

40457066 is a deficient number, since it is larger than the sum of its proper divisors (26418358).

40457066 is a wasteful number, since it uses less digits than its factorization.

40457066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36245.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 40457066 is about 6360.5869226039. The cubic root of 40457066 is about 343.2928788438.

It can be divided in two parts, 4045 and 7066, that added together give a palindrome (11111).

The spelling of 40457066 in words is "forty million, four hundred fifty-seven thousand, sixty-six".