20462056 has 8 divisors (see below), whose sum is σ = 38366370. Its totient is φ = 10231024.

The previous prime is 20462047. The next prime is 20462059. The reversal of 20462056 is 65026402.

It can be written as a sum of positive squares in only one way, i.e., 13439556 + 7022500 = 3666^2 + 2650^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20462056.

It is not an unprimeable number, because it can be changed into a prime (20462059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278871 + ... + 1278886.

Almost surely, 2^20462056 is an apocalyptic number.

It is an amenable number.

20462056 is a deficient number, since it is larger than the sum of its proper divisors (17904314).

20462056 is a wasteful number, since it uses less digits than its factorization.

20462056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557763 (or 2557759 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20462056 is about 4523.5004145020. The cubic root of 20462056 is about 273.5162223688.

Adding to 20462056 its reverse (65026402), we get a palindrome (85488458).

The spelling of 20462056 in words is "twenty million, four hundred sixty-two thousand, fifty-six".