42220132 has 6 divisors (see below), whose sum is σ = 73885238. Its totient is φ = 21110064.

The previous prime is 42220127. The next prime is 42220151. The reversal of 42220132 is 23102224.

It can be written as a sum of positive squares in only one way, i.e., 38738176 + 3481956 = 6224^2 + 1866^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5277513 + ... + 5277520.

Almost surely, 2^42220132 is an apocalyptic number.

It is an amenable number.

42220132 is a deficient number, since it is larger than the sum of its proper divisors (31665106).

42220132 is a wasteful number, since it uses less digits than its factorization.

42220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555037 (or 10555035 counting only the distinct ones).

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

The square root of 42220132 is about 6497.7020553423. The cubic root of 42220132 is about 348.2088960268.

Adding to 42220132 its reverse (23102224), we get a palindrome (65322356).

The spelling of 42220132 in words is "forty-two million, two hundred twenty thousand, one hundred thirty-two".