40421132 has 12 divisors (see below), whose sum is σ = 74460120. Its totient is φ = 19146816.

The previous prime is 40421123. The next prime is 40421137. The reversal of 40421132 is 23112404.

It is a super-2 number, since 2×40421132² = 3267735824322848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40421132.

It is not an unprimeable number, because it can be changed into a prime (40421137) by changing a digit.

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, 265853 + ... + 266004.

It is an arithmetic number, because the mean of its divisors is an integer number (6205010).

Almost surely, 2^40421132 is an apocalyptic number.

It is an amenable number.

40421132 is a deficient number, since it is larger than the sum of its proper divisors (34038988).

40421132 is a wasteful number, since it uses less digits than its factorization.

40421132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531880 (or 531878 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40421132 is about 6357.7615557679. The cubic root of 40421132 is about 343.1912110630.

Adding to 40421132 its reverse (23112404), we get a palindrome (63533536).

The spelling of 40421132 in words is "forty million, four hundred twenty-one thousand, one hundred thirty-two".