20146468 has 6 divisors (see below), whose sum is σ = 35256326. Its totient is φ = 10073232.

The previous prime is 20146453. The next prime is 20146471. The reversal of 20146468 is 86464102.

It can be written as a sum of positive squares in only one way, i.e., 14424804 + 5721664 = 3798^2 + 2392^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518305 + ... + 2518312.

Almost surely, 2^20146468 is an apocalyptic number.

It is an amenable number.

20146468 is a deficient number, since it is larger than the sum of its proper divisors (15109858).

20146468 is a wasteful number, since it uses less digits than its factorization.

20146468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036621 (or 5036619 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 20146468 is about 4488.4817032043. The cubic root of 20146468 is about 272.1027761838.

The spelling of 20146468 in words is "twenty million, one hundred forty-six thousand, four hundred sixty-eight".