20556462 has 8 divisors (see below), whose sum is σ = 41112936. Its totient is φ = 6852152.

The previous prime is 20556433. The next prime is 20556467. The reversal of 20556462 is 26465502.

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

20556462 is an admirable number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20556467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713033 + ... + 1713044.

It is an arithmetic number, because the mean of its divisors is an integer number (5139117).

Almost surely, 2^20556462 is an apocalyptic number.

20556462 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.

20556462 is a wasteful number, since it uses less digits than its factorization.

20556462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426082.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 20556462 is about 4533.9234664912. The cubic root of 20556462 is about 273.9362186598.

The spelling of 20556462 in words is "twenty million, five hundred fifty-six thousand, four hundred sixty-two".