20611426 has 16 divisors (see below), whose sum is σ = 34030368. Its totient is φ = 9284800.

The previous prime is 20611403. The next prime is 20611439. The reversal of 20611426 is 62411602.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20611397 and 20611406.

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, 1660 + ... + 6631.

It is an arithmetic number, because the mean of its divisors is an integer number (2126898).

Almost surely, 2^20611426 is an apocalyptic number.

20611426 is a deficient number, since it is larger than the sum of its proper divisors (13418942).

20611426 is a wasteful number, since it uses less digits than its factorization.

20611426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20611426 is about 4539.9808369640. The cubic root of 20611426 is about 274.1801521849.

The spelling of 20611426 in words is "twenty million, six hundred eleven thousand, four hundred twenty-six".