36172020 has 24 divisors (see below), whose sum is σ = 101281824. Its totient is φ = 9645856.

The previous prime is 36172001. The next prime is 36172049. The reversal of 36172020 is 2027163.

It is a happy number.

It is a congruent number.

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, 301374 + ... + 301493.

It is an arithmetic number, because the mean of its divisors is an integer number (4220076).

Almost surely, 2^36172020 is an apocalyptic number.

36172020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36172020 is an abundant number, since it is smaller than the sum of its proper divisors (65109804).

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

36172020 is a wasteful number, since it uses less digits than its factorization.

36172020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602879 (or 602877 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 36172020 is about 6014.3179164391. The cubic root of 36172020 is about 330.7178130612.

Adding to 36172020 its reverse (2027163), we get a palindrome (38199183).

The spelling of 36172020 in words is "thirty-six million, one hundred seventy-two thousand, twenty".