36821574 has 48 divisors (see below), whose sum is σ = 85604400. Its totient is φ = 11731104.

The previous prime is 36821557. The next prime is 36821581. The reversal of 36821574 is 47512863.

36821574 is a `hidden beast` number, since 3 + 6 + 82 + 1 + 574 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27922 + ... + 29210.

It is an arithmetic number, because the mean of its divisors is an integer number (1783425).

Almost surely, 2^36821574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36821574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42802200).

36821574 is an abundant number, since it is smaller than the sum of its proper divisors (48782826).

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

36821574 is a wasteful number, since it uses less digits than its factorization.

36821574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1317 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 36821574 is about 6068.0782789941. The cubic root of 36821574 is about 332.6856866987.

The spelling of 36821574 in words is "thirty-six million, eight hundred twenty-one thousand, five hundred seventy-four".