20039258 has 8 divisors (see below), whose sum is σ = 30094752. Its totient is φ = 10007676.

The previous prime is 20039251. The next prime is 20039263. The reversal of 20039258 is 85293002.

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

It is a super-2 number, since 2×20039258² = 803143722381128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20039258.

It is not an unprimeable number, because it can be changed into a prime (20039251) 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, 3710 + ... + 7337.

It is an arithmetic number, because the mean of its divisors is an integer number (3761844).

Almost surely, 2^20039258 is an apocalyptic number.

20039258 is a deficient number, since it is larger than the sum of its proper divisors (10055494).

20039258 is a wasteful number, since it uses less digits than its factorization.

20039258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20039258 is about 4476.5229810647. The cubic root of 20039258 is about 271.6192499242.

The spelling of 20039258 in words is "twenty million, thirty-nine thousand, two hundred fifty-eight".