38200905 has 12 divisors (see below), whose sum is σ = 66214980. Its totient is φ = 20373792.

The previous prime is 38200901. The next prime is 38200919. The reversal of 38200905 is 50900283.

It can be written as a sum of positive squares in 2 ways, for example, as 3873024 + 34327881 = 1968^2 + 5859^2 .

It is not a de Polignac number, because 38200905 - 2² = 38200901 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38200901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424410 + ... + 424499.

It is an arithmetic number, because the mean of its divisors is an integer number (5517915).

Almost surely, 2^38200905 is an apocalyptic number.

It is an amenable number.

38200905 is a deficient number, since it is larger than the sum of its proper divisors (28014075).

38200905 is a wasteful number, since it uses less digits than its factorization.

38200905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848920 (or 848917 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 38200905 is about 6180.6880684921. The cubic root of 38200905 is about 336.7889887612.

The spelling of 38200905 in words is "thirty-eight million, two hundred thousand, nine hundred five".