38081658 has 16 divisors (see below), whose sum is σ = 78222240. Its totient is φ = 12350736.

The previous prime is 38081651. The next prime is 38081663. The reversal of 38081658 is 85618083.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38081651) 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 7 ways as a sum of consecutive naturals, for example, 85548 + ... + 85991.

It is an arithmetic number, because the mean of its divisors is an integer number (4888890).

Almost surely, 2^38081658 is an apocalyptic number.

38081658 is an abundant number, since it is smaller than the sum of its proper divisors (40140582).

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

38081658 is a wasteful number, since it uses less digits than its factorization.

38081658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171581.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 38081658 is about 6171.0337869761. The cubic root of 38081658 is about 336.4381860968.

The spelling of 38081658 in words is "thirty-eight million, eighty-one thousand, six hundred fifty-eight".