20454202 has 8 divisors (see below), whose sum is σ = 30707136. Its totient is φ = 10218492.

The previous prime is 20454173. The next prime is 20454211. The reversal of 20454202 is 20245402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20454202.

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, 748 + ... + 6439.

It is an arithmetic number, because the mean of its divisors is an integer number (3838392).

Almost surely, 2^20454202 is an apocalyptic number.

20454202 is a deficient number, since it is larger than the sum of its proper divisors (10252934).

20454202 is a wasteful number, since it uses less digits than its factorization.

20454202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 20454202 is about 4522.6321981784. The cubic root of 20454202 is about 273.4812230948.

Adding to 20454202 its reverse (20245402), we get a palindrome (40699604).

The spelling of 20454202 in words is "twenty million, four hundred fifty-four thousand, two hundred two".