22402132 has 6 divisors (see below), whose sum is σ = 39203738. Its totient is φ = 11201064.

The previous prime is 22402091. The next prime is 22402169. The reversal of 22402132 is 23120422.

It can be written as a sum of positive squares in only one way, i.e., 21566736 + 835396 = 4644^2 + 914^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2800263 + ... + 2800270.

Almost surely, 2^22402132 is an apocalyptic number.

It is an amenable number.

22402132 is a deficient number, since it is larger than the sum of its proper divisors (16801606).

22402132 is a wasteful number, since it uses less digits than its factorization.

22402132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5600537 (or 5600535 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22402132 is about 4733.0890547295. The cubic root of 22402132 is about 281.9008923565.

Adding to 22402132 its reverse (23120422), we get a palindrome (45522554).

The spelling of 22402132 in words is "twenty-two million, four hundred two thousand, one hundred thirty-two".