36545840 has 40 divisors (see below), whose sum is σ = 85829328. Its totient is φ = 14470400.

The previous prime is 36545819. The next prime is 36545843. The reversal of 36545840 is 4854563.

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

It is a self number, because there is not a number n which added to its sum of digits gives 36545840.

It is not an unprimeable number, because it can be changed into a prime (36545843) 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 7 ways as a sum of consecutive naturals, for example, 5819 + ... + 10341.

Almost surely, 2^36545840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36545840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42914664).

36545840 is an abundant number, since it is smaller than the sum of its proper divisors (49283488).

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

36545840 is a wasteful number, since it uses less digits than its factorization.

36545840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637 (or 4631 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 36545840 is about 6045.3155418059. The cubic root of 36545840 is about 331.8531793835.

The spelling of 36545840 in words is "thirty-six million, five hundred forty-five thousand, eight hundred forty".