20202734 has 8 divisors (see below), whose sum is σ = 31349160. Its totient is φ = 9753016.

The previous prime is 20202697. The next prime is 20202751. The reversal of 20202734 is 43720202.

It is a happy number.

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

It is a super-2 number, since 2×20202734² = 816300922149512, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174104 + ... + 174219.

It is an arithmetic number, because the mean of its divisors is an integer number (3918645).

Almost surely, 2^20202734 is an apocalyptic number.

20202734 is a deficient number, since it is larger than the sum of its proper divisors (11146426).

20202734 is a wasteful number, since it uses less digits than its factorization.

20202734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348354.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20202734 is about 4494.7451540660. The cubic root of 20202734 is about 272.3558545220.

Adding to 20202734 its reverse (43720202), we get a palindrome (63922936).

The spelling of 20202734 in words is "twenty million, two hundred two thousand, seven hundred thirty-four".