20275344 has 60 divisors (see below), whose sum is σ = 57335616. Its totient is φ = 6687936.

The previous prime is 20275331. The next prime is 20275349. The reversal of 20275344 is 44357202.

It is a super-2 number, since 2×20275344² = 822179148636672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20275349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14149 + ... + 15515.

Almost surely, 2^20275344 is an apocalyptic number.

20275344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20275344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28667808).

20275344 is an abundant number, since it is smaller than the sum of its proper divisors (37060272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20275344 is a wasteful number, since it uses less digits than its factorization.

20275344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 20275344 is about 4502.8151194558. The cubic root of 20275344 is about 272.6817528877.

The spelling of 20275344 in words is "twenty million, two hundred seventy-five thousand, three hundred forty-four".