36661380 has 96 divisors (see below), whose sum is σ = 120234240. Its totient is φ = 8171520.

The previous prime is 36661357. The next prime is 36661397. The reversal of 36661380 is 8316663.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16156 + ... + 18284.

It is an arithmetic number, because the mean of its divisors is an integer number (1252440).

Almost surely, 2^36661380 is an apocalyptic number.

36661380 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 36661380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60117120).

36661380 is an abundant number, since it is smaller than the sum of its proper divisors (83572860).

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

36661380 is a wasteful number, since it uses less digits than its factorization.

36661380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 36661380 is about 6054.8641603260. The cubic root of 36661380 is about 332.2025304144.

The spelling of 36661380 in words is "thirty-six million, six hundred sixty-one thousand, three hundred eighty".