22130402 has 32 divisors (see below), whose sum is σ = 40212480. Its totient is φ = 8922960.

The previous prime is 22130401. The next prime is 22130411. The reversal of 22130402 is 20403122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (22130401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71933 + ... + 72239.

It is an arithmetic number, because the mean of its divisors is an integer number (1256640).

Almost surely, 2^22130402 is an apocalyptic number.

22130402 is a deficient number, since it is larger than the sum of its proper divisors (18082078).

22130402 is a wasteful number, since it uses less digits than its factorization.

22130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22130402 is about 4704.2961216318. The cubic root of 22130402 is about 280.7564663452.

Adding to 22130402 its reverse (20403122), we get a palindrome (42533524).

The spelling of 22130402 in words is "twenty-two million, one hundred thirty thousand, four hundred two".