38284261 has 4 divisors (see below), whose sum is σ = 38368492. Its totient is φ = 38200032.

The previous prime is 38284243. The next prime is 38284291. The reversal of 38284261 is 16248283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16248283 = 881 ⋅18443.

It can be written as a sum of positive squares in 2 ways, for example, as 25100100 + 13184161 = 5010^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 38284261 - 2⁵ = 38284229 is a prime.

It is a super-2 number, since 2×38284261² = 2931369280632242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38284291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41430 + ... + 42343.

It is an arithmetic number, because the mean of its divisors is an integer number (9592123).

Almost surely, 2^38284261 is an apocalyptic number.

It is an amenable number.

38284261 is a deficient number, since it is larger than the sum of its proper divisors (84231).

38284261 is an equidigital number, since it uses as much as digits as its factorization.

38284261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84230.

The product of its digits is 18432, while the sum is 34.

The square root of 38284261 is about 6187.4276561427. The cubic root of 38284261 is about 337.0337734381.

The spelling of 38284261 in words is "thirty-eight million, two hundred eighty-four thousand, two hundred sixty-one".