20434038 has 16 divisors (see below), whose sum is σ = 42277680. Its totient is φ = 6576416.

The previous prime is 20433989. The next prime is 20434069. The reversal of 20434038 is 83043402.

It is a junction number, because it is equal to n+sod(n) for n = 20433999 and 20434017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58545 + ... + 58892.

It is an arithmetic number, because the mean of its divisors is an integer number (2642355).

Almost surely, 2^20434038 is an apocalyptic number.

20434038 is an abundant number, since it is smaller than the sum of its proper divisors (21843642).

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

20434038 is a wasteful number, since it uses less digits than its factorization.

20434038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117471.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20434038 is about 4520.4024157148. The cubic root of 20434038 is about 273.3913265142.

The spelling of 20434038 in words is "twenty million, four hundred thirty-four thousand, thirty-eight".