20489034 has 16 divisors (see below), whose sum is σ = 41023872. Its totient is φ = 6822048.

The previous prime is 20489023. The next prime is 20489059. The reversal of 20489034 is 43098402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20488992 and 20489010.

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 7 ways as a sum of consecutive naturals, for example, 7407 + ... + 9789.

It is an arithmetic number, because the mean of its divisors is an integer number (2563992).

Almost surely, 2^20489034 is an apocalyptic number.

20489034 is an abundant number, since it is smaller than the sum of its proper divisors (20534838).

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

20489034 is a wasteful number, since it uses less digits than its factorization.

20489034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20489034 is about 4526.4814149624. The cubic root of 20489034 is about 273.6363745199.

The spelling of 20489034 in words is "twenty million, four hundred eighty-nine thousand, thirty-four".