20352402 has 24 divisors (see below), whose sum is σ = 50396736. Its totient is φ = 5814936.

The previous prime is 20352379. The next prime is 20352413. The reversal of 20352402 is 20425302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80638 + ... + 80889.

It is an arithmetic number, because the mean of its divisors is an integer number (2099864).

Almost surely, 2^20352402 is an apocalyptic number.

20352402 is an abundant number, since it is smaller than the sum of its proper divisors (30044334).

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

20352402 is a wasteful number, since it uses less digits than its factorization.

20352402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161542 (or 161539 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20352402 is about 4511.3636519350. The cubic root of 20352402 is about 273.0267654795.

Adding to 20352402 its reverse (20425302), we get a palindrome (40777704).

Subtracting 20352402 from its reverse (20425302), we obtain a square (72900 = 270²).

The spelling of 20352402 in words is "twenty million, three hundred fifty-two thousand, four hundred two".