38030399 has 4 divisors (see below), whose sum is σ = 41487720. Its totient is φ = 34573080.

The previous prime is 38030393. The next prime is 38030401. The reversal of 38030399 is 99303083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99303083 = 11 ⋅9027553.

It is a cyclic number.

It is not a de Polignac number, because 38030399 - 2⁴ = 38030383 is a prime.

It is a super-2 number, since 2×38030399² = 2892622496198402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38030393) 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, 1728644 + ... + 1728665.

It is an arithmetic number, because the mean of its divisors is an integer number (10371930).

Almost surely, 2^38030399 is an apocalyptic number.

38030399 is a deficient number, since it is larger than the sum of its proper divisors (3457321).

38030399 is a wasteful number, since it uses less digits than its factorization.

38030399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457320.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 38030399 is about 6166.8791945359. The cubic root of 38030399 is about 336.2871665131.

The spelling of 38030399 in words is "thirty-eight million, thirty thousand, three hundred ninety-nine".