1226625426 has 24 divisors (see below), whose sum is σ = 2862126540. Its totient is φ = 377423136.

The previous prime is 1226625419. The next prime is 1226625451. The reversal of 1226625426 is 6245266221.

1226625426 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 625 + 4 + 26 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1014486201 + 212139225 = 31851^2 + 14565^2 .

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 11 ways as a sum of consecutive naturals, for example, 2620761 + ... + 2621228.

Almost surely, 2^1226625426 is an apocalyptic number.

1226625426 is an abundant number, since it is smaller than the sum of its proper divisors (1635501114).

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

1226625426 is a wasteful number, since it uses less digits than its factorization.

1226625426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242010 (or 5242007 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1226625426 is about 35023.2126738824. The cubic root of 1226625426 is about 1070.4605191523.

The spelling of 1226625426 in words is "one billion, two hundred twenty-six million, six hundred twenty-five thousand, four hundred twenty-six".