36638249 has 4 divisors (see below), whose sum is σ = 37820160. Its totient is φ = 35456340.

The previous prime is 36638243. The next prime is 36638263. The reversal of 36638249 is 94283663.

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.

It is a cyclic number.

It is not a de Polignac number, because 36638249 - 2²⁴ = 19861033 is a prime.

It is a super-2 number, since 2×36638249² = 2684722579572002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36638243) 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, 590909 + ... + 590970.

It is an arithmetic number, because the mean of its divisors is an integer number (9455040).

Almost surely, 2^36638249 is an apocalyptic number.

It is an amenable number.

36638249 is a deficient number, since it is larger than the sum of its proper divisors (1181911).

36638249 is a wasteful number, since it uses less digits than its factorization.

36638249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181910.

The product of its digits is 186624, while the sum is 41.

The square root of 36638249 is about 6052.9537417694. The cubic root of 36638249 is about 332.1326494900.

The spelling of 36638249 in words is "thirty-six million, six hundred thirty-eight thousand, two hundred forty-nine".