4005272426 has 4 divisors (see below), whose sum is σ = 6007908642. Its totient is φ = 2002636212.

The previous prime is 4005272363. The next prime is 4005272443. The reversal of 4005272426 is 6242725004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3898129225 + 107143201 = 62435^2 + 10351^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4005272392 and 4005272401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001318105 + ... + 1001318108.

Almost surely, 2^4005272426 is an apocalyptic number.

4005272426 is a deficient number, since it is larger than the sum of its proper divisors (2002636216).

4005272426 is a wasteful number, since it uses less digits than its factorization.

4005272426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002636215.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 4005272426 is about 63287.2216644087. The cubic root of 4005272426 is about 1588.0982003008.

The spelling of 4005272426 in words is "four billion, five million, two hundred seventy-two thousand, four hundred twenty-six".