38078369 has 4 divisors (see below), whose sum is σ = 43518144. Its totient is φ = 32638596.

The previous prime is 38078329. The next prime is 38078371. The reversal of 38078369 is 96387083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38078369 is a prime.

It is a super-2 number, since 2×38078369² = 2899924371400322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38078329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2719877 + ... + 2719890.

It is an arithmetic number, because the mean of its divisors is an integer number (10879536).

Almost surely, 2^38078369 is an apocalyptic number.

It is an amenable number.

38078369 is a deficient number, since it is larger than the sum of its proper divisors (5439775).

38078369 is an equidigital number, since it uses as much as digits as its factorization.

38078369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439774.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 38078369 is about 6170.7672942674. The cubic root of 38078369 is about 336.4285000948.

The spelling of 38078369 in words is "thirty-eight million, seventy-eight thousand, three hundred sixty-nine".