20430052 has 12 divisors (see below), whose sum is σ = 35902636. Its totient is φ = 10172160.

The previous prime is 20430041. The next prime is 20430071. The reversal of 20430052 is 25003402.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 13586596 = 2616^2 + 3686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9633 + ... + 11560.

Almost surely, 2^20430052 is an apocalyptic number.

It is an amenable number.

20430052 is a deficient number, since it is larger than the sum of its proper divisors (15472584).

20430052 is a wasteful number, since it uses less digits than its factorization.

20430052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21438 (or 21436 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20430052 is about 4519.9615042608. The cubic root of 20430052 is about 273.3735488452.

Adding to 20430052 its reverse (25003402), we get a palindrome (45433454).

The spelling of 20430052 in words is "twenty million, four hundred thirty thousand, fifty-two".