38941581 has 16 divisors (see below), whose sum is σ = 59647104. Its totient is φ = 22137024.

The previous prime is 38941571. The next prime is 38941601. The reversal of 38941581 is 18514983.

It is not a de Polignac number, because 38941581 - 2¹⁴ = 38925197 is a prime.

It is a super-2 number, since 2×38941581² = 3032893461559122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38941571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570 + ... + 8843.

It is an arithmetic number, because the mean of its divisors is an integer number (3727944).

Almost surely, 2^38941581 is an apocalyptic number.

It is an amenable number.

38941581 is a deficient number, since it is larger than the sum of its proper divisors (20705523).

38941581 is a wasteful number, since it uses less digits than its factorization.

38941581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9620.

The product of its digits is 34560, while the sum is 39.

The square root of 38941581 is about 6240.3189822316. The cubic root of 38941581 is about 338.9517338893.

The spelling of 38941581 in words is "thirty-eight million, nine hundred forty-one thousand, five hundred eighty-one".