20434822 has 4 divisors (see below), whose sum is σ = 30652236. Its totient is φ = 10217410.

The previous prime is 20434811. The next prime is 20434853. The reversal of 20434822 is 22843402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108704 + ... + 5108707.

It is an arithmetic number, because the mean of its divisors is an integer number (7663059).

Almost surely, 2^20434822 is an apocalyptic number.

20434822 is a deficient number, since it is larger than the sum of its proper divisors (10217414).

20434822 is a wasteful number, since it uses less digits than its factorization.

20434822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217413.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 20434822 is about 4520.4891328262. The cubic root of 20434822 is about 273.3948229035.

The spelling of 20434822 in words is "twenty million, four hundred thirty-four thousand, eight hundred twenty-two".