20572698 has 8 divisors (see below), whose sum is σ = 41145408. Its totient is φ = 6857564.

The previous prime is 20572697. The next prime is 20572709. The reversal of 20572698 is 89627502.

It is a happy number.

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

20572698 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20572691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1714386 + ... + 1714397.

It is an arithmetic number, because the mean of its divisors is an integer number (5143176).

Almost surely, 2^20572698 is an apocalyptic number.

20572698 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.

20572698 is a wasteful number, since it uses less digits than its factorization.

20572698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428788.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 20572698 is about 4535.7136152980. The cubic root of 20572698 is about 274.0083202048.

The spelling of 20572698 in words is "twenty million, five hundred seventy-two thousand, six hundred ninety-eight".