20486430 has 24 divisors (see below), whose sum is σ = 53264952. Its totient is φ = 5463024.

The previous prime is 20486387. The next prime is 20486437. The reversal of 20486430 is 3468402.

It is a junction number, because it is equal to n+sod(n) for n = 20486394 and 20486403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20486437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113724 + ... + 113903.

It is an arithmetic number, because the mean of its divisors is an integer number (2219373).

Almost surely, 2^20486430 is an apocalyptic number.

20486430 is an abundant number, since it is smaller than the sum of its proper divisors (32778522).

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

20486430 is a wasteful number, since it uses less digits than its factorization.

20486430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227640 (or 227637 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20486430 is about 4526.1937651850. The cubic root of 20486430 is about 273.6247816632.

The spelling of 20486430 in words is "twenty million, four hundred eighty-six thousand, four hundred thirty".