20450344 has 32 divisors (see below), whose sum is σ = 40082400. Its totient is φ = 9771840.

The previous prime is 20450329. The next prime is 20450351. The reversal of 20450344 is 44305402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16879 + ... + 18049.

It is an arithmetic number, because the mean of its divisors is an integer number (1252575).

Almost surely, 2^20450344 is an apocalyptic number.

It is an amenable number.

20450344 is a deficient number, since it is larger than the sum of its proper divisors (19632056).

20450344 is a wasteful number, since it uses less digits than its factorization.

20450344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20450344 is about 4522.2056565353. The cubic root of 20450344 is about 273.4640276565.

Adding to 20450344 its reverse (44305402), we get a palindrome (64755746).

The spelling of 20450344 in words is "twenty million, four hundred fifty thousand, three hundred forty-four".