38381898 has 8 divisors (see below), whose sum is σ = 76763808. Its totient is φ = 12793964.

The previous prime is 38381891. The next prime is 38381899. The reversal of 38381898 is 89818383.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

38381898 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38381891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3198486 + ... + 3198497.

It is an arithmetic number, because the mean of its divisors is an integer number (9595476).

Almost surely, 2^38381898 is an apocalyptic number.

38381898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38381898 is a wasteful number, since it uses less digits than its factorization.

38381898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396988.

The product of its digits is 331776, while the sum is 48.

The square root of 38381898 is about 6195.3125829130. The cubic root of 38381898 is about 337.3200445309.

The spelling of 38381898 in words is "thirty-eight million, three hundred eighty-one thousand, eight hundred ninety-eight".