20261034 has 24 divisors (see below), whose sum is σ = 43981860. Its totient is φ = 6740928.

The previous prime is 20261023. The next prime is 20261039. The reversal of 20261034 is 43016202.

It is a happy number.

20261034 is a `hidden beast` number, since 20 + 2 + 610 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20223009 + 38025 = 4497^2 + 195^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20260998 and 20261016.

It is not an unprimeable number, because it can be changed into a prime (20261039) 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 11 ways as a sum of consecutive naturals, for example, 17382 + ... + 18510.

Almost surely, 2^20261034 is an apocalyptic number.

20261034 is an abundant number, since it is smaller than the sum of its proper divisors (23720826).

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

20261034 is a wasteful number, since it uses less digits than its factorization.

20261034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20261034 is about 4501.2258330370. The cubic root of 20261034 is about 272.6175863767.

Adding to 20261034 its reverse (43016202), we get a palindrome (63277236).

The spelling of 20261034 in words is "twenty million, two hundred sixty-one thousand, thirty-four".