20159470 has 8 divisors (see below), whose sum is σ = 36287064. Its totient is φ = 8063784.

The previous prime is 20159449. The next prime is 20159497. The reversal of 20159470 is 7495102.

It is a happy number.

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

It is a plaindrome in base 16.

It is a congruent 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, 1007964 + ... + 1007983.

It is an arithmetic number, because the mean of its divisors is an integer number (4535883).

Almost surely, 2^20159470 is an apocalyptic number.

20159470 is a deficient number, since it is larger than the sum of its proper divisors (16127594).

20159470 is a wasteful number, since it uses less digits than its factorization.

20159470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015954.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20159470 is about 4489.9298435499. The cubic root of 20159470 is about 272.1612995849.

The spelling of 20159470 in words is "twenty million, one hundred fifty-nine thousand, four hundred seventy".