1626444426 has 16 divisors (see below), whose sum is σ = 3253938624. Its totient is φ = 541973184.

The previous prime is 1626444401. The next prime is 1626444431. The reversal of 1626444426 is 6244446261.

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 in 7 ways as a sum of consecutive naturals, for example, 22830 + ... + 61433.

It is an arithmetic number, because the mean of its divisors is an integer number (203371164).

Almost surely, 2^1626444426 is an apocalyptic number.

1626444426 is an abundant number, since it is smaller than the sum of its proper divisors (1627494198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1626444426 is a wasteful number, since it uses less digits than its factorization.

1626444426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87485.

The product of its digits is 221184, while the sum is 39.

The square root of 1626444426 is about 40329.2006615554. The cubic root of 1626444426 is about 1176.0155821319.

The spelling of 1626444426 in words is "one billion, six hundred twenty-six million, four hundred forty-four thousand, four hundred twenty-six".