1631224426 has 16 divisors (see below), whose sum is σ = 2790058824. Its totient is φ = 708585984.

The previous prime is 1631224381. The next prime is 1631224453. The reversal of 1631224426 is 6244221361.

It can be written as a sum of positive squares in 4 ways, for example, as 1552281201 + 78943225 = 39399^2 + 8885^2 .

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, 1844835 + ... + 1845718.

Almost surely, 2^1631224426 is an apocalyptic number.

1631224426 is a deficient number, since it is larger than the sum of its proper divisors (1158834398).

1631224426 is a wasteful number, since it uses less digits than its factorization.

1631224426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690585.

The product of its digits is 13824, while the sum is 31.

The square root of 1631224426 is about 40388.4194540960. The cubic root of 1631224426 is about 1177.1665296531.

Adding to 1631224426 its reverse (6244221361), we get a palindrome (7875445787).

The spelling of 1631224426 in words is "one billion, six hundred thirty-one million, two hundred twenty-four thousand, four hundred twenty-six".