40797403930 has 16 divisors (see below), whose sum is σ = 77755052520. Its totient is φ = 15359022592.

The previous prime is 40797403909. The next prime is 40797403939. The reversal of 40797403930 is 3930479704.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26237844361 + 14559559569 = 161981^2 + 120663^2 .

It is not an unprimeable number, because it can be changed into a prime (40797403939) 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, 119992195 + ... + 119992534.

Almost surely, 2^40797403930 is an apocalyptic number.

40797403930 is a deficient number, since it is larger than the sum of its proper divisors (36957648590).

40797403930 is a wasteful number, since it uses less digits than its factorization.

40797403930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239984753.

The product of its (nonzero) digits is 571536, while the sum is 46.

The spelling of 40797403930 in words is "forty billion, seven hundred ninety-seven million, four hundred three thousand, nine hundred thirty".