40065370 has 8 divisors (see below), whose sum is σ = 72117684. Its totient is φ = 16026144.

The previous prime is 40065367. The next prime is 40065407. The reversal of 40065370 is 7356004.

40065370 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 39727809 + 337561 = 6303^2 + 581^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 2003259 + ... + 2003278.

Almost surely, 2^40065370 is an apocalyptic number.

40065370 is a deficient number, since it is larger than the sum of its proper divisors (32052314).

40065370 is a wasteful number, since it uses less digits than its factorization.

40065370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006544.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 40065370 is about 6329.7211628949. The cubic root of 40065370 is about 342.1813898188.

The spelling of 40065370 in words is "forty million, sixty-five thousand, three hundred seventy".