20269039 has 8 divisors (see below), whose sum is σ = 23703680. Its totient is φ = 16969176.

The previous prime is 20269033. The next prime is 20269063. The reversal of 20269039 is 93096202.

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

It is not a de Polignac number, because 20269039 - 2⁹ = 20268527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20269039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20269033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33369 + ... + 33970.

It is an arithmetic number, because the mean of its divisors is an integer number (2962960).

Almost surely, 2^20269039 is an apocalyptic number.

20269039 is a deficient number, since it is larger than the sum of its proper divisors (3434641).

20269039 is an equidigital number, since it uses as much as digits as its factorization.

20269039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67389.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 20269039 is about 4502.1149474441. The cubic root of 20269039 is about 272.6534847822.

The spelling of 20269039 in words is "twenty million, two hundred sixty-nine thousand, thirty-nine".