40338965 has 8 divisors (see below), whose sum is σ = 48760920. Its totient is φ = 32035072.

The previous prime is 40338959. The next prime is 40338973. The reversal of 40338965 is 56983304.

It can be written as a sum of positive squares in 4 ways, for example, as 1874161 + 38464804 = 1369^2 + 6202^2 .

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 40338965 - 2¹⁸ = 40076821 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, 28760 + ... + 30129.

It is an arithmetic number, because the mean of its divisors is an integer number (6095115).

Almost surely, 2^40338965 is an apocalyptic number.

It is an amenable number.

40338965 is a deficient number, since it is larger than the sum of its proper divisors (8421955).

40338965 is a wasteful number, since it uses less digits than its factorization.

40338965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59031.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 40338965 is about 6351.2963243735. The cubic root of 40338965 is about 342.9585099993.

The spelling of 40338965 in words is "forty million, three hundred thirty-eight thousand, nine hundred sixty-five".