20346869 has 8 divisors (see below), whose sum is σ = 21074592. Its totient is φ = 19630800.

The previous prime is 20346863. The next prime is 20346877. The reversal of 20346869 is 96864302.

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 20346869 - 2¹⁶ = 20281333 is a prime.

It is a super-2 number, since 2×20346869² = 827990156206322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719 + ... + 6419.

It is an arithmetic number, because the mean of its divisors is an integer number (2634324).

Almost surely, 2^20346869 is an apocalyptic number.

It is an amenable number.

20346869 is a deficient number, since it is larger than the sum of its proper divisors (727723).

20346869 is an equidigital number, since it uses as much as digits as its factorization.

20346869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5827.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 20346869 is about 4510.7503810342. The cubic root of 20346869 is about 273.0020215695.

The spelling of 20346869 in words is "twenty million, three hundred forty-six thousand, eight hundred sixty-nine".