20229475 has 12 divisors (see below), whose sum is σ = 28668304. Its totient is φ = 13871520.

The previous prime is 20229467. The next prime is 20229481. The reversal of 20229475 is 57492202.

It is not a de Polignac number, because 20229475 - 2³ = 20229467 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 57624 + ... + 57973.

Almost surely, 2^20229475 is an apocalyptic number.

20229475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20229475 is a deficient number, since it is larger than the sum of its proper divisors (8438829).

20229475 is a wasteful number, since it uses less digits than its factorization.

20229475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115614 (or 115609 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20229475 is about 4497.7188662699. The cubic root of 20229475 is about 272.4759679168.

The spelling of 20229475 in words is "twenty million, two hundred twenty-nine thousand, four hundred seventy-five".