36520240 has 20 divisors (see below), whose sum is σ = 84909744. Its totient is φ = 14608064.

The previous prime is 36520213. The next prime is 36520243. The reversal of 36520240 is 4202563.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (36520243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228172 + ... + 228331.

Almost surely, 2^36520240 is an apocalyptic number.

It is an amenable number.

36520240 is an abundant number, since it is smaller than the sum of its proper divisors (48389504).

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

36520240 is a wasteful number, since it uses less digits than its factorization.

36520240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456516 (or 456510 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 36520240 is about 6043.1978289644. The cubic root of 36520240 is about 331.7756746586.

The spelling of 36520240 in words is "thirty-six million, five hundred twenty thousand, two hundred forty".