20431482 has 8 divisors (see below), whose sum is σ = 40862976. Its totient is φ = 6810492.

The previous prime is 20431451. The next prime is 20431547. The reversal of 20431482 is 28413402.

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

20431482 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, 1702618 + ... + 1702629.

It is an arithmetic number, because the mean of its divisors is an integer number (5107872).

Almost surely, 2^20431482 is an apocalyptic number.

20431482 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.

20431482 is a wasteful number, since it uses less digits than its factorization.

20431482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405252.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20431482 is about 4520.1196886808. The cubic root of 20431482 is about 273.3799269502.

Adding to 20431482 its reverse (28413402), we get a palindrome (48844884).

The spelling of 20431482 in words is "twenty million, four hundred thirty-one thousand, four hundred eighty-two".