38190739 has 2 divisors, whose sum is σ = 38190740. Its totient is φ = 38190738.

The previous prime is 38190727. The next prime is 38190773. The reversal of 38190739 is 93709183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38190739 - 2¹¹ = 38188691 is a prime.

It is a super-2 number, since 2×38190739² = 2917065090732242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38190799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19095369 + 19095370.

It is an arithmetic number, because the mean of its divisors is an integer number (19095370).

Almost surely, 2^38190739 is an apocalyptic number.

38190739 is a deficient number, since it is larger than the sum of its proper divisors (1).

38190739 is an equidigital number, since it uses as much as digits as its factorization.

38190739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 38190739 is about 6179.8656134256. The cubic root of 38190739 is about 336.7591107551.

The spelling of 38190739 in words is "thirty-eight million, one hundred ninety thousand, seven hundred thirty-nine".