38090945 has 16 divisors (see below), whose sum is σ = 47424000. Its totient is φ = 29346624.

The previous prime is 38090929. The next prime is 38090957. The reversal of 38090945 is 54909083.

It is not a de Polignac number, because 38090945 - 2⁴ = 38090929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38090899 and 38090908.

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, 18056 + ... + 20054.

It is an arithmetic number, because the mean of its divisors is an integer number (2964000).

Almost surely, 2^38090945 is an apocalyptic number.

It is an amenable number.

38090945 is a deficient number, since it is larger than the sum of its proper divisors (9333055).

38090945 is a wasteful number, since it uses less digits than its factorization.

38090945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 38090945 is about 6171.7862082221. The cubic root of 38090945 is about 336.4655330108.

The spelling of 38090945 in words is "thirty-eight million, ninety thousand, nine hundred forty-five".