42421132 has 24 divisors (see below), whose sum is σ = 80536400. Its totient is φ = 19434816.

The previous prime is 42421123. The next prime is 42421133. The reversal of 42421132 is 23112424.

It is a super-2 number, since 2×42421132² = 3599104880322848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42421133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4294 + ... + 10162.

Almost surely, 2^42421132 is an apocalyptic number.

It is an amenable number.

42421132 is a deficient number, since it is larger than the sum of its proper divisors (38115268).

42421132 is a wasteful number, since it uses less digits than its factorization.

42421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025 (or 6023 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 42421132 is about 6513.1506968594. The cubic root of 42421132 is about 348.7606013315.

Adding to 42421132 its reverse (23112424), we get a palindrome (65533556).

It can be divided in two parts, 4 and 2421132, that added together give a square (2421136 = 1556²).

The spelling of 42421132 in words is "forty-two million, four hundred twenty-one thousand, one hundred thirty-two".