38103945 has 16 divisors (see below), whose sum is σ = 66508992. Its totient is φ = 18474560.

The previous prime is 38103943. The next prime is 38103959. The reversal of 38103945 is 54930183.

It is not a de Polignac number, because 38103945 - 2¹ = 38103943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38103943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115302 + ... + 115631.

It is an arithmetic number, because the mean of its divisors is an integer number (4156812).

Almost surely, 2^38103945 is an apocalyptic number.

It is an amenable number.

38103945 is a deficient number, since it is larger than the sum of its proper divisors (28405047).

38103945 is a wasteful number, since it uses less digits than its factorization.

38103945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230952.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 38103945 is about 6172.8392980864. The cubic root of 38103945 is about 336.5038059251.

The spelling of 38103945 in words is "thirty-eight million, one hundred three thousand, nine hundred forty-five".