40393450 has 12 divisors (see below), whose sum is σ = 75131910. Its totient is φ = 16157360.

The previous prime is 40393427. The next prime is 40393481. The reversal of 40393450 is 5439304.

40393450 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 3 ways, for example, as 30702681 + 9690769 = 5541^2 + 3113^2 .

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 5 ways as a sum of consecutive naturals, for example, 403885 + ... + 403984.

Almost surely, 2^40393450 is an apocalyptic number.

40393450 is a deficient number, since it is larger than the sum of its proper divisors (34738460).

40393450 is a wasteful number, since it uses less digits than its factorization.

40393450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807881 (or 807876 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 40393450 is about 6355.5841588323. The cubic root of 40393450 is about 343.1128495050.

The spelling of 40393450 in words is "forty million, three hundred ninety-three thousand, four hundred fifty".