36246640 has 40 divisors (see below), whose sum is σ = 84624048. Its totient is φ = 14438400.

The previous prime is 36246629. The next prime is 36246649. The reversal of 36246640 is 4664263.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×36246640² = 2627637822579200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36246649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21840 + ... + 23440.

Almost surely, 2^36246640 is an apocalyptic number.

It is an amenable number.

36246640 is an abundant number, since it is smaller than the sum of its proper divisors (48377408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36246640 is a wasteful number, since it uses less digits than its factorization.

36246640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 36246640 is about 6020.5182501177. The cubic root of 36246640 is about 330.9450717079.

The spelling of 36246640 in words is "thirty-six million, two hundred forty-six thousand, six hundred forty".