20449342 has 8 divisors (see below), whose sum is σ = 30693600. Its totient is φ = 10218144.

The previous prime is 20449337. The next prime is 20449343. The reversal of 20449342 is 24394402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20449342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20449343) 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, 3259 + ... + 7177.

It is an arithmetic number, because the mean of its divisors is an integer number (3836700).

Almost surely, 2^20449342 is an apocalyptic number.

20449342 is a deficient number, since it is larger than the sum of its proper divisors (10244258).

20449342 is a wasteful number, since it uses less digits than its factorization.

20449342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 20449342 is about 4522.0948685316. The cubic root of 20449342 is about 273.4595613025.

The spelling of 20449342 in words is "twenty million, four hundred forty-nine thousand, three hundred forty-two".