36418881 has 4 divisors (see below), whose sum is σ = 48558512. Its totient is φ = 24279252.

The previous prime is 36418873. The next prime is 36418903. The reversal of 36418881 is 18881463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18881463 = 3 ⋅6293821.

It is not a de Polignac number, because 36418881 - 2³ = 36418873 is a prime.

It is a super-2 number, since 2×36418881² = 2652669786584322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36418861) 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, 6069811 + ... + 6069816.

It is an arithmetic number, because the mean of its divisors is an integer number (12139628).

Almost surely, 2^36418881 is an apocalyptic number.

It is an amenable number.

36418881 is a deficient number, since it is larger than the sum of its proper divisors (12139631).

36418881 is a wasteful number, since it uses less digits than its factorization.

36418881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12139630.

The product of its digits is 36864, while the sum is 39.

The square root of 36418881 is about 6034.8057963782. The cubic root of 36418881 is about 331.4684513245.

The spelling of 36418881 in words is "thirty-six million, four hundred eighteen thousand, eight hundred eighty-one".