1213350426 has 24 divisors (see below), whose sum is σ = 2643619680. Its totient is φ = 402189576.

The previous prime is 1213350421. The next prime is 1213350461. The reversal of 1213350426 is 6240533121.

1213350426 is a `hidden beast` number, since 1 + 2 + 133 + 504 + 26 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1213350426.

It is not an unprimeable number, because it can be changed into a prime (1213350421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185070 + ... + 191513.

It is an arithmetic number, because the mean of its divisors is an integer number (110150820).

Almost surely, 2^1213350426 is an apocalyptic number.

1213350426 is an abundant number, since it is smaller than the sum of its proper divisors (1430269254).

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

1213350426 is a wasteful number, since it uses less digits than its factorization.

1213350426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376770 (or 376767 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1213350426 is about 34833.1799581950. The cubic root of 1213350426 is about 1066.5848624548.

Adding to 1213350426 its reverse (6240533121), we get a palindrome (7453883547).

The spelling of 1213350426 in words is "one billion, two hundred thirteen million, three hundred fifty thousand, four hundred twenty-six".