40604645 has 8 divisors (see below), whose sum is σ = 48760440. Its totient is φ = 32460480.

The previous prime is 40604639. The next prime is 40604659. The reversal of 40604645 is 54640604.

It can be written as a sum of positive squares in 4 ways, for example, as 332929 + 40271716 = 577^2 + 6346^2 .

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

It is not a de Polignac number, because 40604645 - 2⁶ = 40604581 is a prime.

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, 9971 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (6095055).

Almost surely, 2^40604645 is an apocalyptic number.

It is an amenable number.

40604645 is a deficient number, since it is larger than the sum of its proper divisors (8155795).

40604645 is a wasteful number, since it uses less digits than its factorization.

40604645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 40604645 is about 6372.1774143537. The cubic root of 40604645 is about 343.7097927628.

The spelling of 40604645 in words is "forty million, six hundred four thousand, six hundred forty-five".