20435234 has 8 divisors (see below), whose sum is σ = 31365840. Its totient is φ = 9979956.

The previous prime is 20435209. The next prime is 20435237. The reversal of 20435234 is 43253402.

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

It is a super-3 number, since 3×20435234³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20435237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118724 + ... + 118895.

It is an arithmetic number, because the mean of its divisors is an integer number (3920730).

Almost surely, 2^20435234 is an apocalyptic number.

20435234 is a deficient number, since it is larger than the sum of its proper divisors (10930606).

20435234 is a wasteful number, since it uses less digits than its factorization.

20435234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237664.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 20435234 is about 4520.5347028864. The cubic root of 20435234 is about 273.3966602560.

Adding to 20435234 its reverse (43253402), we get a palindrome (63688636).

It can be divided in two parts, 204 and 35234, that multiplied together give a triangular number (7187736 = T₃₇₉₁).

The spelling of 20435234 in words is "twenty million, four hundred thirty-five thousand, two hundred thirty-four".