36443440 has 40 divisors (see below), whose sum is σ = 92436048. Its totient is φ = 13251840.

The previous prime is 36443423. The next prime is 36443441. The reversal of 36443440 is 4434463.

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

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 36443399 and 36443408.

It is not an unprimeable number, because it can be changed into a prime (36443441) 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, 19827 + ... + 21586.

Almost surely, 2^36443440 is an apocalyptic number.

It is an amenable number.

36443440 is an abundant number, since it is smaller than the sum of its proper divisors (55992608).

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

36443440 is a wasteful number, since it uses less digits than its factorization.

36443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41437 (or 41431 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 36443440 is about 6036.8402331021. The cubic root of 36443440 is about 331.5429429463.

The spelling of 36443440 in words is "thirty-six million, four hundred forty-three thousand, four hundred forty".