20146732 has 6 divisors (see below), whose sum is σ = 35256788. Its totient is φ = 10073364.

The previous prime is 20146681. The next prime is 20146741. The reversal of 20146732 is 23764102.

It is a junction number, because it is equal to n+sod(n) for n = 20146697 and 20146706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518338 + ... + 2518345.

Almost surely, 2^20146732 is an apocalyptic number.

It is an amenable number.

20146732 is a deficient number, since it is larger than the sum of its proper divisors (15110056).

20146732 is a wasteful number, since it uses less digits than its factorization.

20146732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036687 (or 5036685 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20146732 is about 4488.5111117162. The cubic root of 20146732 is about 272.1039647266.

The spelling of 20146732 in words is "twenty million, one hundred forty-six thousand, seven hundred thirty-two".