20873030 has 8 divisors (see below), whose sum is σ = 37571472. Its totient is φ = 8349208.

The previous prime is 20873003. The next prime is 20873051. The reversal of 20873030 is 3037802.

20873030 = T₂₈₈₇ + T₂₈₈₈ + ... + T₂₈₉₁.

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

It is a junction number, because it is equal to n+sod(n) for n = 20872987 and 20873005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043642 + ... + 1043661.

It is an arithmetic number, because the mean of its divisors is an integer number (4696434).

Almost surely, 2^20873030 is an apocalyptic number.

20873030 is a deficient number, since it is larger than the sum of its proper divisors (16698442).

20873030 is a wasteful number, since it uses less digits than its factorization.

20873030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087310.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20873030 is about 4568.7011283296. The cubic root of 20873030 is about 275.3352605295.

The spelling of 20873030 in words is "twenty million, eight hundred seventy-three thousand, thirty".