38221038 has 16 divisors (see below), whose sum is σ = 84935760. Its totient is φ = 12740328.

The previous prime is 38221019. The next prime is 38221039. The reversal of 38221038 is 83012283.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38221039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353845 + ... + 353952.

It is an arithmetic number, because the mean of its divisors is an integer number (5308485).

Almost surely, 2^38221038 is an apocalyptic number.

38221038 is an abundant number, since it is smaller than the sum of its proper divisors (46714722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38221038 is a wasteful number, since it uses less digits than its factorization.

38221038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707808 (or 707802 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 38221038 is about 6182.3165561139. The cubic root of 38221038 is about 336.8481442696.

The spelling of 38221038 in words is "thirty-eight million, two hundred twenty-one thousand, thirty-eight".