20468468 has 6 divisors (see below), whose sum is σ = 35819826. Its totient is φ = 10234232.

The previous prime is 20468467. The next prime is 20468507. The reversal of 20468468 is 86486402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13853284 + 6615184 = 3722^2 + 2572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20468467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2558555 + ... + 2558562.

It is an arithmetic number, because the mean of its divisors is an integer number (5969971).

Almost surely, 2^20468468 is an apocalyptic number.

It is an amenable number.

20468468 is a deficient number, since it is larger than the sum of its proper divisors (15351358).

20468468 is a wasteful number, since it uses less digits than its factorization.

20468468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117121 (or 5117119 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 20468468 is about 4524.2091021526. The cubic root of 20468468 is about 273.5447891114.

The spelling of 20468468 in words is "twenty million, four hundred sixty-eight thousand, four hundred sixty-eight".