36645780 has 24 divisors (see below), whose sum is σ = 102608352. Its totient is φ = 9772192.

The previous prime is 36645773. The next prime is 36645793. The reversal of 36645780 is 8754663.

36645780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 305322 + ... + 305441.

It is an arithmetic number, because the mean of its divisors is an integer number (4275348).

Almost surely, 2^36645780 is an apocalyptic number.

36645780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36645780 is an abundant number, since it is smaller than the sum of its proper divisors (65962572).

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

36645780 is a wasteful number, since it uses less digits than its factorization.

36645780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610775 (or 610773 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 36645780 is about 6053.5758027797. The cubic root of 36645780 is about 332.1554045769.

It can be divided in two parts, 36 and 645780, that added together give a triangular number (645816 = T₁₁₃₆).

The spelling of 36645780 in words is "thirty-six million, six hundred forty-five thousand, seven hundred eighty".