20263039 has 8 divisors (see below), whose sum is σ = 20612592. Its totient is φ = 19916160.

The previous prime is 20263027. The next prime is 20263043. The reversal of 20263039 is 93036202.

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

It is a cyclic number.

It is not a de Polignac number, because 20263039 - 2⁵ = 20263007 is a prime.

It is a Duffinian number.

20263039 is a modest number, since divided by 3039 gives 2026 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20263049) 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, 19497 + ... + 20509.

It is an arithmetic number, because the mean of its divisors is an integer number (2576574).

Almost surely, 2^20263039 is an apocalyptic number.

20263039 is a deficient number, since it is larger than the sum of its proper divisors (349553).

20263039 is a wasteful number, since it uses less digits than its factorization.

20263039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20263039 is about 4501.4485446354. The cubic root of 20263039 is about 272.6265786824.

The spelling of 20263039 in words is "twenty million, two hundred sixty-three thousand, thirty-nine".