20349234 has 48 divisors (see below), whose sum is σ = 45961344. Its totient is φ = 6501600.

The previous prime is 20349229. The next prime is 20349253. The reversal of 20349234 is 43294302.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20349198 and 20349207.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46999 + ... + 47429.

It is an arithmetic number, because the mean of its divisors is an integer number (957528).

Almost surely, 2^20349234 is an apocalyptic number.

20349234 is an abundant number, since it is smaller than the sum of its proper divisors (25612110).

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

20349234 is a wasteful number, since it uses less digits than its factorization.

20349234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 20349234 is about 4511.0125249217. The cubic root of 20349234 is about 273.0125985411.

The spelling of 20349234 in words is "twenty million, three hundred forty-nine thousand, two hundred thirty-four".