40414430021 has 32 divisors (see below), whose sum is σ = 50973032448. Its totient is φ = 31244901120.

The previous prime is 40414430011. The next prime is 40414430047. The reversal of 40414430021 is 12003441404.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-40414430021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40414430011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326786 + ... + 433148.

It is an arithmetic number, because the mean of its divisors is an integer number (1592907264).

Almost surely, 2^40414430021 is an apocalyptic number.

It is an amenable number.

40414430021 is a deficient number, since it is larger than the sum of its proper divisors (10558602427).

40414430021 is a wasteful number, since it uses less digits than its factorization.

40414430021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106521.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40414430021 its reverse (12003441404), we get a palindrome (52417871425).

The spelling of 40414430021 in words is "forty billion, four hundred fourteen million, four hundred thirty thousand, twenty-one".