20489035 has 16 divisors (see below), whose sum is σ = 28310976. Its totient is φ = 13943808.

The previous prime is 20489023. The next prime is 20489059. The reversal of 20489035 is 53098402.

It is a cyclic number.

It is not a de Polignac number, because 20489035 - 2⁵ = 20489003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20488988 and 20489006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2659 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (1769436).

Almost surely, 2^20489035 is an apocalyptic number.

20489035 is a deficient number, since it is larger than the sum of its proper divisors (7821941).

20489035 is a wasteful number, since it uses less digits than its factorization.

20489035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20489035 is about 4526.4815254235. The cubic root of 20489035 is about 273.6363789717.

The spelling of 20489035 in words is "twenty million, four hundred eighty-nine thousand, thirty-five".