38465281 has 4 divisors (see below), whose sum is σ = 39791700. Its totient is φ = 37138864.

The previous prime is 38465267. The next prime is 38465293. The reversal of 38465281 is 18256483.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19184400 + 19280881 = 4380^2 + 4391^2 .

It is a cyclic number.

It is not a de Polignac number, because 38465281 - 2⁵ = 38465249 is a prime.

It is a super-2 number, since 2×38465281² = 2959155684817922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38465281.

It is not an unprimeable number, because it can be changed into a prime (38465201) 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, 663166 + ... + 663223.

It is an arithmetic number, because the mean of its divisors is an integer number (9947925).

Almost surely, 2^38465281 is an apocalyptic number.

It is an amenable number.

38465281 is a deficient number, since it is larger than the sum of its proper divisors (1326419).

38465281 is a wasteful number, since it uses less digits than its factorization.

38465281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326418.

The product of its digits is 46080, while the sum is 37.

The square root of 38465281 is about 6202.0384552178. The cubic root of 38465281 is about 337.5641388847.

The spelling of 38465281 in words is "thirty-eight million, four hundred sixty-five thousand, two hundred eighty-one".