20713458 has 48 divisors (see below), whose sum is σ = 44659296. Its totient is φ = 6402240.

The previous prime is 20713457. The next prime is 20713489. The reversal of 20713458 is 85431702.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20713457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158053 + ... + 158183.

It is an arithmetic number, because the mean of its divisors is an integer number (930402).

Almost surely, 2^20713458 is an apocalyptic number.

20713458 is an abundant number, since it is smaller than the sum of its proper divisors (23945838).

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

20713458 is a wasteful number, since it uses less digits than its factorization.

20713458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20713458 is about 4551.2040165213. The cubic root of 20713458 is about 274.6318290746.

The spelling of 20713458 in words is "twenty million, seven hundred thirteen thousand, four hundred fifty-eight".