20770422 has 16 divisors (see below), whose sum is σ = 41626560. Its totient is φ = 6909192.

The previous prime is 20770397. The next prime is 20770423. The reversal of 20770422 is 22407702.

It is a junction number, because it is equal to n+sod(n) for n = 20770392 and 20770401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20770423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172 + ... + 6447.

It is an arithmetic number, because the mean of its divisors is an integer number (2601660).

Almost surely, 2^20770422 is an apocalyptic number.

20770422 is an abundant number, since it is smaller than the sum of its proper divisors (20856138).

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

20770422 is a wasteful number, since it uses less digits than its factorization.

20770422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 20770422 is about 4557.4578440179. The cubic root of 20770422 is about 274.8833532838.

The spelling of 20770422 in words is "twenty million, seven hundred seventy thousand, four hundred twenty-two".