40421431304 has 8 divisors (see below), whose sum is σ = 75790183710. Its totient is φ = 20210715648.

The previous prime is 40421431223. The next prime is 40421431331. The reversal of 40421431304 is 40313412404.

It can be written as a sum of positive squares in only one way, i.e., 25853424100 + 14568007204 = 160790^2 + 120698^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40421431304² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526339449 + ... + 2526339464.

Almost surely, 2^40421431304 is an apocalyptic number.

It is an amenable number.

40421431304 is a deficient number, since it is larger than the sum of its proper divisors (35368752406).

40421431304 is a wasteful number, since it uses less digits than its factorization.

40421431304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052678919 (or 5052678915 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 40421431304 its reverse (40313412404), we get a palindrome (80734843708).

The spelling of 40421431304 in words is "forty billion, four hundred twenty-one million, four hundred thirty-one thousand, three hundred four".