38420279 has 4 divisors (see below), whose sum is σ = 38993784. Its totient is φ = 37846776.

The previous prime is 38420267. The next prime is 38420293. The reversal of 38420279 is 97202483.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38420279 is a prime.

It is a super-2 number, since 2×38420279² = 2952235676875682, 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 (38420209) 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, 286652 + ... + 286785.

It is an arithmetic number, because the mean of its divisors is an integer number (9748446).

Almost surely, 2^38420279 is an apocalyptic number.

38420279 is a deficient number, since it is larger than the sum of its proper divisors (573505).

38420279 is an equidigital number, since it uses as much as digits as its factorization.

38420279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573504.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 38420279 is about 6198.4093927394. The cubic root of 38420279 is about 337.4324444576.

The spelling of 38420279 in words is "thirty-eight million, four hundred twenty thousand, two hundred seventy-nine".