36388281 has 8 divisors (see below), whose sum is σ = 49201344. Its totient is φ = 23917040.

The previous prime is 36388267. The next prime is 36388337. The reversal of 36388281 is 18288363.

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 36388281 - 2¹⁸ = 36126137 is a prime.

It is a super-2 number, since 2×36388281² = 2648213988269922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36388241) 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, 85206 + ... + 85631.

It is an arithmetic number, because the mean of its divisors is an integer number (6150168).

Almost surely, 2^36388281 is an apocalyptic number.

It is an amenable number.

36388281 is a deficient number, since it is larger than the sum of its proper divisors (12813063).

36388281 is a wasteful number, since it uses less digits than its factorization.

36388281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170911.

The product of its digits is 55296, while the sum is 39.

The square root of 36388281 is about 6032.2699707490. The cubic root of 36388281 is about 331.3755894496.

The spelling of 36388281 in words is "thirty-six million, three hundred eighty-eight thousand, two hundred eighty-one".