36423281 has 4 divisors (see below), whose sum is σ = 37407732. Its totient is φ = 35438832.

The previous prime is 36423271. The next prime is 36423307. The reversal of 36423281 is 18232463.

36423281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16128256 + 20295025 = 4016^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 36423281 - 2¹⁴ = 36406897 is a prime.

It is a super-2 number, since 2×36423281² = 2653310797609922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36423241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492170 + ... + 492243.

It is an arithmetic number, because the mean of its divisors is an integer number (9351933).

Almost surely, 2^36423281 is an apocalyptic number.

It is an amenable number.

36423281 is a deficient number, since it is larger than the sum of its proper divisors (984451).

36423281 is an equidigital number, since it uses as much as digits as its factorization.

36423281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984450.

The product of its digits is 6912, while the sum is 29.

The square root of 36423281 is about 6035.1703372813. The cubic root of 36423281 is about 331.4817997344.

The spelling of 36423281 in words is "thirty-six million, four hundred twenty-three thousand, two hundred eighty-one".