36781740 has 72 divisors (see below), whose sum is σ = 112519680. Its totient is φ = 9725184.

The previous prime is 36781733. The next prime is 36781757. The reversal of 36781740 is 4718763.

36781740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 = 36781695 and 36781704.

It is an unprimeable number.

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, 22056 + ... + 23664.

Almost surely, 2^36781740 is an apocalyptic number.

36781740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36781740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56259840).

36781740 is an abundant number, since it is smaller than the sum of its proper divisors (75737940).

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

36781740 is a wasteful number, since it uses less digits than its factorization.

36781740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751 (or 1746 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 36781740 is about 6064.7951325663. The cubic root of 36781740 is about 332.5656756846.

The spelling of 36781740 in words is "thirty-six million, seven hundred eighty-one thousand, seven hundred forty".