20146284 has 36 divisors (see below), whose sum is σ = 51064104. Its totient is φ = 6697152.

The previous prime is 20146279. The next prime is 20146319. The reversal of 20146284 is 48264102.

20146284 is a `hidden beast` number, since 20 + 14 + 628 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21759 + ... + 22665.

Almost surely, 2^20146284 is an apocalyptic number.

It is an amenable number.

20146284 is an abundant number, since it is smaller than the sum of its proper divisors (30917820).

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

20146284 is a wasteful number, since it uses less digits than its factorization.

20146284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1529 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20146284 is about 4488.4612062488. The cubic root of 20146284 is about 272.1019477994.

The spelling of 20146284 in words is "twenty million, one hundred forty-six thousand, two hundred eighty-four".