20342369 has 8 divisors (see below), whose sum is σ = 22152000. Its totient is φ = 18606672.

The previous prime is 20342359. The next prime is 20342389. The reversal of 20342369 is 96324302.

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 20342369 - 2²⁴ = 3565153 is a prime.

It is a super-2 number, since 2×20342369² = 827623953064322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20342359) 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, 17909 + ... + 19010.

It is an arithmetic number, because the mean of its divisors is an integer number (2769000).

Almost surely, 2^20342369 is an apocalyptic number.

20342369 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

20342369 is a deficient number, since it is larger than the sum of its proper divisors (1809631).

20342369 is a wasteful number, since it uses less digits than its factorization.

20342369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36967.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 20342369 is about 4510.2515450915. The cubic root of 20342369 is about 272.9818939899.

The spelling of 20342369 in words is "twenty million, three hundred forty-two thousand, three hundred sixty-nine".