20224870 has 8 divisors (see below), whose sum is σ = 36404784. Its totient is φ = 8089944.

The previous prime is 20224837. The next prime is 20224901. The reversal of 20224870 is 7842202.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1011234 + ... + 1011253.

It is an arithmetic number, because the mean of its divisors is an integer number (4550598).

Almost surely, 2^20224870 is an apocalyptic number.

20224870 is a deficient number, since it is larger than the sum of its proper divisors (16179914).

20224870 is a wasteful number, since it uses less digits than its factorization.

20224870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022494.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 20224870 is about 4497.2069109615. The cubic root of 20224870 is about 272.4552910406.

The spelling of 20224870 in words is "twenty million, two hundred twenty-four thousand, eight hundred seventy".