36404646 has 16 divisors (see below), whose sum is σ = 76641600. Its totient is φ = 11496168.

The previous prime is 36404639. The next prime is 36404647. The reversal of 36404646 is 64640463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36404647) 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, 159556 + ... + 159783.

It is an arithmetic number, because the mean of its divisors is an integer number (4790100).

Almost surely, 2^36404646 is an apocalyptic number.

36404646 is an abundant number, since it is smaller than the sum of its proper divisors (40236954).

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

36404646 is a wasteful number, since it uses less digits than its factorization.

36404646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319363.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 36404646 is about 6033.6262728147. The cubic root of 36404646 is about 331.4252588176.

The spelling of 36404646 in words is "thirty-six million, four hundred four thousand, six hundred forty-six".