38820319 has 4 divisors (see below), whose sum is σ = 39052944. Its totient is φ = 38587696.

The previous prime is 38820307. The next prime is 38820347. The reversal of 38820319 is 91302883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38820319 - 2¹¹ = 38818271 is a prime.

It is a super-2 number, since 2×38820319² = 3014034334523522, 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 (38823319) 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, 116062 + ... + 116395.

It is an arithmetic number, because the mean of its divisors is an integer number (9763236).

Almost surely, 2^38820319 is an apocalyptic number.

38820319 is a deficient number, since it is larger than the sum of its proper divisors (232625).

38820319 is a wasteful number, since it uses less digits than its factorization.

38820319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232624.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 38820319 is about 6230.5953969103. The cubic root of 38820319 is about 338.5995422118.

The spelling of 38820319 in words is "thirty-eight million, eight hundred twenty thousand, three hundred nineteen".