36661530 has 64 divisors (see below), whose sum is σ = 92160000. Its totient is φ = 9322560.

The previous prime is 36661519. The next prime is 36661543. The reversal of 36661530 is 3516663.

36661530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 73221 + ... + 73719.

It is an arithmetic number, because the mean of its divisors is an integer number (1440000).

Almost surely, 2^36661530 is an apocalyptic number.

36661530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36661530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46080000).

36661530 is an abundant number, since it is smaller than the sum of its proper divisors (55498470).

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

36661530 is a wasteful number, since it uses less digits than its factorization.

36661530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 36661530 is about 6054.8765470487. The cubic root of 36661530 is about 332.2029834826.

The spelling of 36661530 in words is "thirty-six million, six hundred sixty-one thousand, five hundred thirty".