20434461 has 8 divisors (see below), whose sum is σ = 27398880. Its totient is φ = 13546512.

The previous prime is 20434457. The next prime is 20434499. The reversal of 20434461 is 16443402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20434461 - 2² = 20434457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18490 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (3424860).

Almost surely, 2^20434461 is an apocalyptic number.

It is an amenable number.

20434461 is a deficient number, since it is larger than the sum of its proper divisors (6964419).

20434461 is a wasteful number, since it uses less digits than its factorization.

20434461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38235.

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

The square root of 20434461 is about 4520.4492033425. The cubic root of 20434461 is about 273.3932129701.

Adding to 20434461 its reverse (16443402), we get a palindrome (36877863).

The spelling of 20434461 in words is "twenty million, four hundred thirty-four thousand, four hundred sixty-one".