38840845 has 16 divisors (see below), whose sum is σ = 49452480. Its totient is φ = 29203200.

The previous prime is 38840833. The next prime is 38840917. The reversal of 38840845 is 54804883.

It is not a de Polignac number, because 38840845 - 2¹¹ = 38838797 is a prime.

It is a super-2 number, since 2×38840845² = 3017222480628050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38840798 and 38840807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10885 + ... + 14005.

It is an arithmetic number, because the mean of its divisors is an integer number (3090780).

Almost surely, 2^38840845 is an apocalyptic number.

It is an amenable number.

38840845 is a deficient number, since it is larger than the sum of its proper divisors (10611635).

38840845 is a wasteful number, since it uses less digits than its factorization.

38840845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 38840845 is about 6232.2423733356. The cubic root of 38840845 is about 338.6592091577.

The spelling of 38840845 in words is "thirty-eight million, eight hundred forty thousand, eight hundred forty-five".