20854372 has 24 divisors (see below), whose sum is σ = 45501120. Its totient is φ = 8124960.

The previous prime is 20854369. The next prime is 20854397. The reversal of 20854372 is 27345802.

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 7 ways as a sum of consecutive naturals, for example, 33547 + ... + 34162.

It is an arithmetic number, because the mean of its divisors is an integer number (1895880).

Almost surely, 2^20854372 is an apocalyptic number.

20854372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20854372 is an abundant number, since it is smaller than the sum of its proper divisors (24646748).

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

20854372 is a wasteful number, since it uses less digits than its factorization.

20854372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67731 (or 67729 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 20854372 is about 4566.6587347863. The cubic root of 20854372 is about 275.2531971087.

The spelling of 20854372 in words is "twenty million, eight hundred fifty-four thousand, three hundred seventy-two".