38901213 has 12 divisors (see below), whose sum is σ = 60513180. Its totient is φ = 23939136.

The previous prime is 38901193. The next prime is 38901221. The reversal of 38901213 is 31210983.

It can be written as a sum of positive squares in 2 ways, for example, as 12089529 + 26811684 = 3477^2 + 5178^2 .

It is not a de Polignac number, because 38901213 - 2¹⁰ = 38900189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38901293) 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, 166128 + ... + 166361.

It is an arithmetic number, because the mean of its divisors is an integer number (5042765).

Almost surely, 2^38901213 is an apocalyptic number.

It is an amenable number.

38901213 is a deficient number, since it is larger than the sum of its proper divisors (21611967).

38901213 is a wasteful number, since it uses less digits than its factorization.

38901213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332508 (or 332505 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 38901213 is about 6237.0836935222. The cubic root of 38901213 is about 338.8345709154.

The spelling of 38901213 in words is "thirty-eight million, nine hundred one thousand, two hundred thirteen".