38901449 has 2 divisors, whose sum is σ = 38901450. Its totient is φ = 38901448.

The previous prime is 38901431. The next prime is 38901461. The reversal of 38901449 is 94410983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38502025 + 399424 = 6205^2 + 632^2 .

It is an emirp because it is prime and its reverse (94410983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38901449 - 2⁸ = 38901193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38901409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19450724 + 19450725.

It is an arithmetic number, because the mean of its divisors is an integer number (19450725).

Almost surely, 2^38901449 is an apocalyptic number.

It is an amenable number.

38901449 is a deficient number, since it is larger than the sum of its proper divisors (1).

38901449 is an equidigital number, since it uses as much as digits as its factorization.

38901449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 38901449 is about 6237.1026125918. The cubic root of 38901449 is about 338.8352561108.

The spelling of 38901449 in words is "thirty-eight million, nine hundred one thousand, four hundred forty-nine".