38022811 has 4 divisors (see below), whose sum is σ = 38180824. Its totient is φ = 37864800.

The previous prime is 38022769. The next prime is 38022823. The reversal of 38022811 is 11822083.

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 38022811 - 2¹³ = 38014619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38022011) 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, 78645 + ... + 79126.

It is an arithmetic number, because the mean of its divisors is an integer number (9545206).

Almost surely, 2^38022811 is an apocalyptic number.

38022811 is a deficient number, since it is larger than the sum of its proper divisors (158013).

38022811 is a wasteful number, since it uses less digits than its factorization.

38022811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158012.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 38022811 is about 6166.2639418046. The cubic root of 38022811 is about 336.2647991718.

Adding to 38022811 its reverse (11822083), we get a palindrome (49844894).

The spelling of 38022811 in words is "thirty-eight million, twenty-two thousand, eight hundred eleven".