42421352 has 16 divisors (see below), whose sum is σ = 80844900. Its totient is φ = 20862720.

The previous prime is 42421321. The next prime is 42421363. The reversal of 42421352 is 25312424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 7540516 = 5906^2 + 2746^2 .

It is a super-2 number, since 2×42421352² = 3599142211015808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42977 + ... + 43952.

Almost surely, 2^42421352 is an apocalyptic number.

It is an amenable number.

42421352 is a deficient number, since it is larger than the sum of its proper divisors (38423548).

42421352 is a wasteful number, since it uses less digits than its factorization.

42421352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86996 (or 86992 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 42421352 is about 6513.1675857450. The cubic root of 42421352 is about 348.7612042323.

Adding to 42421352 its reverse (25312424), we get a palindrome (67733776).

The spelling of 42421352 in words is "forty-two million, four hundred twenty-one thousand, three hundred fifty-two".