38749019 has 2 divisors, whose sum is σ = 38749020. Its totient is φ = 38749018.

The previous prime is 38748991. The next prime is 38749033. The reversal of 38749019 is 91094783.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38749019 is a prime.

It is a super-2 number, since 2×38749019² = 3002972946924722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38749049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19374509 + 19374510.

It is an arithmetic number, because the mean of its divisors is an integer number (19374510).

Almost surely, 2^38749019 is an apocalyptic number.

38749019 is a deficient number, since it is larger than the sum of its proper divisors (1).

38749019 is an equidigital number, since it uses as much as digits as its factorization.

38749019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 38749019 is about 6224.8710026795. The cubic root of 38749019 is about 338.3921169643.

The spelling of 38749019 in words is "thirty-eight million, seven hundred forty-nine thousand, nineteen".