38231000 has 32 divisors (see below), whose sum is σ = 89462880. Its totient is φ = 15292000.

The previous prime is 38230981. The next prime is 38231009. The reversal of 38231000 is 13283.

It is a super-2 number, since 2×38231000² = 2923218722000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38231000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38231009) 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, 18116 + ... + 20115.

It is an arithmetic number, because the mean of its divisors is an integer number (2795715).

Almost surely, 2^38231000 is an apocalyptic number.

It is an amenable number.

38231000 is an abundant number, since it is smaller than the sum of its proper divisors (51231880).

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

38231000 is a wasteful number, since it uses less digits than its factorization.

38231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38252 (or 38238 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 38231000 is about 6183.1221886681. The cubic root of 38231000 is about 336.8774072959.

Adding to 38231000 its reverse (13283), we get a palindrome (38244283).

The spelling of 38231000 in words is "thirty-eight million, two hundred thirty-one thousand".