20217048 has 32 divisors (see below), whose sum is σ = 51187200. Its totient is φ = 6653088.

The previous prime is 20217019. The next prime is 20217077. The reversal of 20217048 is 84071202.

It is an interprime number because it is at equal distance from previous prime (20217019) and next prime (20217077).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 3436 + ... + 7227.

It is an arithmetic number, because the mean of its divisors is an integer number (1599600).

Almost surely, 2^20217048 is an apocalyptic number.

It is an amenable number.

20217048 is an abundant number, since it is smaller than the sum of its proper divisors (30970152).

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

20217048 is a wasteful number, since it uses less digits than its factorization.

20217048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751 (or 10747 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 20217048 is about 4496.3371759689. The cubic root of 20217048 is about 272.4201623420.

The spelling of 20217048 in words is "twenty million, two hundred seventeen thousand, forty-eight".