38472449 has 2 divisors, whose sum is σ = 38472450. Its totient is φ = 38472448.

The previous prime is 38472439. The next prime is 38472481. The reversal of 38472449 is 94427483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24930049 + 13542400 = 4993^2 + 3680^2 .

It is an emirp because it is prime and its reverse (94427483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38472449 - 2⁴ = 38472433 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38472419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19236224 + 19236225.

It is an arithmetic number, because the mean of its divisors is an integer number (19236225).

Almost surely, 2^38472449 is an apocalyptic number.

It is an amenable number.

38472449 is a deficient number, since it is larger than the sum of its proper divisors (1).

38472449 is an equidigital number, since it uses as much as digits as its factorization.

38472449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 38472449 is about 6202.6163028193. The cubic root of 38472449 is about 337.5851059265.

The spelling of 38472449 in words is "thirty-eight million, four hundred seventy-two thousand, four hundred forty-nine".