40790645 has 8 divisors (see below), whose sum is σ = 55941504. Its totient is φ = 27970704.

The previous prime is 40790593. The next prime is 40790669. The reversal of 40790645 is 54609704.

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

It is a cyclic number.

It is not a de Polignac number, because 40790645 - 2²⁰ = 39742069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1165447 = 40790645 / (4 + 0 + 7 + 9 + 0 + 6 + 4 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582689 + ... + 582758.

It is an arithmetic number, because the mean of its divisors is an integer number (6992688).

Almost surely, 2^40790645 is an apocalyptic number.

It is an amenable number.

40790645 is a deficient number, since it is larger than the sum of its proper divisors (15150859).

40790645 is a wasteful number, since it uses less digits than its factorization.

40790645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165459.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 40790645 is about 6386.7554360567. The cubic root of 40790645 is about 344.2338104227.

The spelling of 40790645 in words is "forty million, seven hundred ninety thousand, six hundred forty-five".