20146146 has 8 divisors (see below), whose sum is σ = 40292304. Its totient is φ = 6715380.

The previous prime is 20146111. The next prime is 20146153. The reversal of 20146146 is 64164102.

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

20146146 is an admirable 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, 1678840 + ... + 1678851.

It is an arithmetic number, because the mean of its divisors is an integer number (5036538).

Almost surely, 2^20146146 is an apocalyptic number.

20146146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20146146 is a wasteful number, since it uses less digits than its factorization.

20146146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357696.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20146146 is about 4488.4458334706. The cubic root of 20146146 is about 272.1013265077.

The spelling of 20146146 in words is "twenty million, one hundred forty-six thousand, one hundred forty-six".