20475416 has 16 divisors (see below), whose sum is σ = 41344800. Its totient is φ = 9450144.

The previous prime is 20475383. The next prime is 20475491. The reversal of 20475416 is 61457402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98336 + ... + 98543.

It is an arithmetic number, because the mean of its divisors is an integer number (2584050).

Almost surely, 2^20475416 is an apocalyptic number.

20475416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20475416 is an abundant number, since it is smaller than the sum of its proper divisors (20869384).

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

20475416 is a wasteful number, since it uses less digits than its factorization.

20475416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196898 (or 196894 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 20475416 is about 4524.9769060184. The cubic root of 20475416 is about 273.5757371072.

The spelling of 20475416 in words is "twenty million, four hundred seventy-five thousand, four hundred sixteen".