20434331 has 8 divisors (see below), whose sum is σ = 21356544. Its totient is φ = 19532520.

The previous prime is 20434321. The next prime is 20434369. The reversal of 20434331 is 13343402.

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

It is a cyclic number.

It is not a de Polignac number, because 20434331 - 2¹⁰ = 20433307 is a prime.

It is a super-2 number, since 2×20434331² = 835123766835122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20434321) 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, 3035 + ... + 7076.

It is an arithmetic number, because the mean of its divisors is an integer number (2669568).

Almost surely, 2^20434331 is an apocalyptic number.

20434331 is a deficient number, since it is larger than the sum of its proper divisors (922213).

20434331 is a wasteful number, since it uses less digits than its factorization.

20434331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10201.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20434331 is about 4520.4348242177. The cubic root of 20434331 is about 273.3926332110.

Adding to 20434331 its reverse (13343402), we get a palindrome (33777733).

The spelling of 20434331 in words is "twenty million, four hundred thirty-four thousand, three hundred thirty-one".