38742019 has 2 divisors, whose sum is σ = 38742020. Its totient is φ = 38742018.

The previous prime is 38742001. The next prime is 38742023. The reversal of 38742019 is 91024783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38742019 - 2⁷ = 38741891 is a prime.

It is a super-2 number, since 2×38742019² = 3001888072392722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38742029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19371009 + 19371010.

It is an arithmetic number, because the mean of its divisors is an integer number (19371010).

Almost surely, 2^38742019 is an apocalyptic number.

38742019 is a deficient number, since it is larger than the sum of its proper divisors (1).

38742019 is an equidigital number, since it uses as much as digits as its factorization.

38742019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 38742019 is about 6224.3087166367. The cubic root of 38742019 is about 338.3717389218.

The spelling of 38742019 in words is "thirty-eight million, seven hundred forty-two thousand, nineteen".