38539481 has 8 divisors (see below), whose sum is σ = 39563040. Its totient is φ = 37521792.

The previous prime is 38539477. The next prime is 38539489. The reversal of 38539481 is 18493583.

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

It is a cyclic number.

It is not a de Polignac number, because 38539481 - 2² = 38539477 is a prime.

It is a super-2 number, since 2×38539481² = 2970583191498722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38539489) 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, 13910 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (4945380).

Almost surely, 2^38539481 is an apocalyptic number.

It is an amenable number.

38539481 is a deficient number, since it is larger than the sum of its proper divisors (1023559).

38539481 is a wasteful number, since it uses less digits than its factorization.

38539481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935.

The product of its digits is 103680, while the sum is 41.

The square root of 38539481 is about 6208.0174774239. The cubic root of 38539481 is about 337.7810545916.

The spelling of 38539481 in words is "thirty-eight million, five hundred thirty-nine thousand, four hundred eighty-one".