38022431 has 4 divisors (see below), whose sum is σ = 38034864. Its totient is φ = 38010000.

The previous prime is 38022409. The next prime is 38022443. The reversal of 38022431 is 13422083.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13422083 = 37 ⋅362759.

It is a cyclic number.

It is not a de Polignac number, because 38022431 - 2⁶ = 38022367 is a prime.

It is a super-2 number, since 2×38022431² = 2891410518299522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38022397 and 38022406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38022631) 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, 1931 + ... + 8931.

It is an arithmetic number, because the mean of its divisors is an integer number (9508716).

Almost surely, 2^38022431 is an apocalyptic number.

38022431 is a deficient number, since it is larger than the sum of its proper divisors (12433).

38022431 is an equidigital number, since it uses as much as digits as its factorization.

38022431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12432.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 38022431 is about 6166.2331289046. The cubic root of 38022431 is about 336.2636789578.

The spelling of 38022431 in words is "thirty-eight million, twenty-two thousand, four hundred thirty-one".