36372409 has 12 divisors (see below), whose sum is σ = 38341420. Its totient is φ = 34493760.

The previous prime is 36372397. The next prime is 36372421. The reversal of 36372409 is 90427363.

It is an interprime number because it is at equal distance from previous prime (36372397) and next prime (36372421).

It can be written as a sum of positive squares in 6 ways, for example, as 7856809 + 28515600 = 2803^2 + 5340^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36372409 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36372449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50947 + ... + 51655.

Almost surely, 2^36372409 is an apocalyptic number.

It is an amenable number.

36372409 is a deficient number, since it is larger than the sum of its proper divisors (1969011).

36372409 is an equidigital number, since it uses as much as digits as its factorization.

36372409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 36372409 is about 6030.9542362714. The cubic root of 36372409 is about 331.3274021567.

The spelling of 36372409 in words is "thirty-six million, three hundred seventy-two thousand, four hundred nine".