20422352 has 10 divisors (see below), whose sum is σ = 39568338. Its totient is φ = 10211168.

The previous prime is 20422343. The next prime is 20422357. The reversal of 20422352 is 25322402.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 7862416 = 3544^2 + 2804^2 .

It is a super-2 number, since 2×20422352² = 834144922423808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638183 + ... + 638214.

Almost surely, 2^20422352 is an apocalyptic number.

It is an amenable number.

20422352 is a deficient number, since it is larger than the sum of its proper divisors (19145986).

20422352 is a wasteful number, since it uses less digits than its factorization.

20422352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276405 (or 1276399 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20422352 is about 4519.1096468220. The cubic root of 20422352 is about 273.3392000856.

Adding to 20422352 its reverse (25322402), we get a palindrome (45744754).

The spelling of 20422352 in words is "twenty million, four hundred twenty-two thousand, three hundred fifty-two".