36722220 has 24 divisors (see below), whose sum is σ = 102822384. Its totient is φ = 9792576.

The previous prime is 36722173. The next prime is 36722239. The reversal of 36722220 is 2222763.

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, 305959 + ... + 306078.

It is an arithmetic number, because the mean of its divisors is an integer number (4284266).

Almost surely, 2^36722220 is an apocalyptic number.

36722220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36722220 is an abundant number, since it is smaller than the sum of its proper divisors (66100164).

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

36722220 is a wasteful number, since it uses less digits than its factorization.

36722220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612049 (or 612047 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 36722220 is about 6059.8861375442. The cubic root of 36722220 is about 332.3861935499.

Adding to 36722220 its reverse (2222763), we get a palindrome (38944983).

The spelling of 36722220 in words is "thirty-six million, seven hundred twenty-two thousand, two hundred twenty".