20460426 has 32 divisors (see below), whose sum is σ = 46901760. Its totient is φ = 5828976.

The previous prime is 20460373. The next prime is 20460443. The reversal of 20460426 is 62406402.

20460426 = 150² + 151² + ... + 401².

It is a junction number, because it is equal to n+sod(n) for n = 20460396 and 20460405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25605 + ... + 26391.

It is an arithmetic number, because the mean of its divisors is an integer number (1465680).

Almost surely, 2^20460426 is an apocalyptic number.

20460426 is an abundant number, since it is smaller than the sum of its proper divisors (26441334).

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

20460426 is a wasteful number, since it uses less digits than its factorization.

20460426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20460426 is about 4523.3202407081. The cubic root of 20460426 is about 273.5089594414.

Adding to 20460426 its reverse (62406402), we get a palindrome (82866828).

The spelling of 20460426 in words is "twenty million, four hundred sixty thousand, four hundred twenty-six".