36781428 has 24 divisors (see below), whose sum is σ = 87917760. Its totient is φ = 11961280.

The previous prime is 36781427. The next prime is 36781429. The reversal of 36781428 is 82418763.

36781428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (36781427) and next prime (36781429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36781427) 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 7 ways as a sum of consecutive naturals, for example, 36888 + ... + 37871.

It is an arithmetic number, because the mean of its divisors is an integer number (3663240).

Almost surely, 2^36781428 is an apocalyptic number.

It is an amenable number.

36781428 is an abundant number, since it is smaller than the sum of its proper divisors (51136332).

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

36781428 is a wasteful number, since it uses less digits than its factorization.

36781428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74807 (or 74805 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 36781428 is about 6064.7694102909. The cubic root of 36781428 is about 332.5647353558.

The spelling of 36781428 in words is "thirty-six million, seven hundred eighty-one thousand, four hundred twenty-eight".