38820379 has 4 divisors (see below), whose sum is σ = 41806576. Its totient is φ = 35834184.

The previous prime is 38820377. The next prime is 38820493. The reversal of 38820379 is 97302883.

It is a happy number.

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 38820379 - 2¹ = 38820377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38820373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493079 + ... + 1493104.

It is an arithmetic number, because the mean of its divisors is an integer number (10451644).

Almost surely, 2^38820379 is an apocalyptic number.

38820379 is a deficient number, since it is larger than the sum of its proper divisors (2986197).

38820379 is a wasteful number, since it uses less digits than its factorization.

38820379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986196.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 38820379 is about 6230.6002118576. The cubic root of 38820379 is about 338.5997166562.

The spelling of 38820379 in words is "thirty-eight million, eight hundred twenty thousand, three hundred seventy-nine".