20476146 has 16 divisors (see below), whose sum is σ = 42364800. Its totient is φ = 6589968.

The previous prime is 20476139. The next prime is 20476153. The reversal of 20476146 is 64167402.

It is an interprime number because it is at equal distance from previous prime (20476139) and next prime (20476153).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58666 + ... + 59013.

It is an arithmetic number, because the mean of its divisors is an integer number (2647800).

Almost surely, 2^20476146 is an apocalyptic number.

20476146 is an abundant number, since it is smaller than the sum of its proper divisors (21888654).

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

20476146 is a wasteful number, since it uses less digits than its factorization.

20476146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117713.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20476146 is about 4525.0575686946. The cubic root of 20476146 is about 273.5789882893.

The spelling of 20476146 in words is "twenty million, four hundred seventy-six thousand, one hundred forty-six".