36409994 has 12 divisors (see below), whose sum is σ = 55334034. Its totient is φ = 17968392.

The previous prime is 36409987. The next prime is 36409999. The reversal of 36409994 is 49990463.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18879025 + 17530969 = 4345^2 + 4187^2 .

It is not an unprimeable number, because it can be changed into a prime (36409999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11024 + ... + 13940.

Almost surely, 2^36409994 is an apocalyptic number.

36409994 is a deficient number, since it is larger than the sum of its proper divisors (18924040).

36409994 is an equidigital number, since it uses as much as digits as its factorization.

36409994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077 (or 2998 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 36409994 is about 6034.0694394413. The cubic root of 36409994 is about 331.4414872911.

The spelling of 36409994 in words is "thirty-six million, four hundred nine thousand, nine hundred ninety-four".