36481644 has 24 divisors (see below), whose sum is σ = 94582320. Its totient is φ = 12160512.

The previous prime is 36481631. The next prime is 36481661. The reversal of 36481644 is 44618463.

36481644 is a `hidden beast` number, since 3 + 6 + 4 + 8 + 1 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 36481599 and 36481608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168789 + ... + 169004.

It is an arithmetic number, because the mean of its divisors is an integer number (3940930).

Almost surely, 2^36481644 is an apocalyptic number.

It is an amenable number.

36481644 is an abundant number, since it is smaller than the sum of its proper divisors (58100676).

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

36481644 is a wasteful number, since it uses less digits than its factorization.

36481644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337806 (or 337798 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 36481644 is about 6040.0036423830. The cubic root of 36481644 is about 331.6587556789.

The spelling of 36481644 in words is "thirty-six million, four hundred eighty-one thousand, six hundred forty-four".