20603046 has 16 divisors (see below), whose sum is σ = 41361408. Its totient is φ = 6841800.

The previous prime is 20603041. The next prime is 20603047. The reversal of 20603046 is 64030602.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20603041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4710 + ... + 7961.

It is an arithmetic number, because the mean of its divisors is an integer number (2585088).

Almost surely, 2^20603046 is an apocalyptic number.

20603046 is an abundant number, since it is smaller than the sum of its proper divisors (20758362).

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

20603046 is a wasteful number, since it uses less digits than its factorization.

20603046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12947.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20603046 is about 4539.0578317532. The cubic root of 20603046 is about 274.1429892843.

Adding to 20603046 its reverse (64030602), we get a palindrome (84633648).

The spelling of 20603046 in words is "twenty million, six hundred three thousand, forty-six".