20860422 has 16 divisors (see below), whose sum is σ = 45513792. Its totient is φ = 6321320.

The previous prime is 20860409. The next prime is 20860451. The reversal of 20860422 is 22406802.

It is a junction number, because it is equal to n+sod(n) for n = 20860392 and 20860401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157968 + ... + 158099.

It is an arithmetic number, because the mean of its divisors is an integer number (2844612).

Almost surely, 2^20860422 is an apocalyptic number.

20860422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20860422 is an abundant number, since it is smaller than the sum of its proper divisors (24653370).

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

20860422 is a wasteful number, since it uses less digits than its factorization.

20860422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316083.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20860422 is about 4567.3210966605. The cubic root of 20860422 is about 275.2798121646.

The spelling of 20860422 in words is "twenty million, eight hundred sixty thousand, four hundred twenty-two".