20074220 has 12 divisors (see below), whose sum is σ = 42155904. Its totient is φ = 8029680.

The previous prime is 20074207. The next prime is 20074253. The reversal of 20074220 is 2247002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501836 + ... + 501875.

It is an arithmetic number, because the mean of its divisors is an integer number (3512992).

Almost surely, 2^20074220 is an apocalyptic number.

20074220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20074220 is an abundant number, since it is smaller than the sum of its proper divisors (22081684).

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

20074220 is a wasteful number, since it uses less digits than its factorization.

20074220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003720 (or 1003718 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 20074220 is about 4480.4263190014. The cubic root of 20074220 is about 271.7771206211. Note that the first 3 decimals are identical.

The spelling of 20074220 in words is "twenty million, seventy-four thousand, two hundred twenty".