36781344 has 48 divisors (see below), whose sum is σ = 107281440. Its totient is φ = 12260160.

The previous prime is 36781343. The next prime is 36781351. The reversal of 36781344 is 44318763.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 36781299 and 36781308.

It is not an unprimeable number, because it can be changed into a prime (36781343) 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, 20422 + ... + 22149.

It is an arithmetic number, because the mean of its divisors is an integer number (2235030).

Almost surely, 2^36781344 is an apocalyptic number.

It is an amenable number.

36781344 is an abundant number, since it is smaller than the sum of its proper divisors (70500096).

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

36781344 is a wasteful number, since it uses less digits than its factorization.

36781344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42590 (or 42576 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 36781344 is about 6064.7624850442. The cubic root of 36781344 is about 332.5644821895.

The spelling of 36781344 in words is "thirty-six million, seven hundred eighty-one thousand, three hundred forty-four".