40705312 has 24 divisors (see below), whose sum is σ = 80854956. Its totient is φ = 20170752.

The previous prime is 40705309. The next prime is 40705319. The reversal of 40705312 is 21350704.

It can be written as a sum of positive squares in 2 ways, for example, as 39992976 + 712336 = 6324^2 + 844^2 .

It is not an unprimeable number, because it can be changed into a prime (40705319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2013 + ... + 9244.

Almost surely, 2^40705312 is an apocalyptic number.

It is an amenable number.

40705312 is a deficient number, since it is larger than the sum of its proper divisors (40149644).

40705312 is a wasteful number, since it uses less digits than its factorization.

40705312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380 (or 11372 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 40705312 is about 6380.0714729539. The cubic root of 40705312 is about 343.9936000252.

The spelling of 40705312 in words is "forty million, seven hundred five thousand, three hundred twelve".