20603426 has 8 divisors (see below), whose sum is σ = 30999504. Its totient is φ = 10270260.

The previous prime is 20603417. The next prime is 20603431. The reversal of 20603426 is 62430602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14900 + ... + 16223.

It is an arithmetic number, because the mean of its divisors is an integer number (3874938).

Almost surely, 2^20603426 is an apocalyptic number.

20603426 is a deficient number, since it is larger than the sum of its proper divisors (10396078).

20603426 is a wasteful number, since it uses less digits than its factorization.

20603426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31456.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20603426 is about 4539.0996904673. The cubic root of 20603426 is about 274.1446746936.

The spelling of 20603426 in words is "twenty million, six hundred three thousand, four hundred twenty-six".