36531378 has 48 divisors (see below), whose sum is σ = 87927840. Its totient is φ = 11237616.

The previous prime is 36531377. The next prime is 36531401. The reversal of 36531378 is 87313563.

36531378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (36531377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7125 + ... + 11127.

It is an arithmetic number, because the mean of its divisors is an integer number (1831830).

Almost surely, 2^36531378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36531378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43963920).

36531378 is an abundant number, since it is smaller than the sum of its proper divisors (51396462).

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

36531378 is a wasteful number, since it uses less digits than its factorization.

36531378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040 (or 4021 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 36531378 is about 6044.1192906825. The cubic root of 36531378 is about 331.8093997187.

The spelling of 36531378 in words is "thirty-six million, five hundred thirty-one thousand, three hundred seventy-eight".