12401442426 has 16 divisors (see below), whose sum is σ = 24805283904. Its totient is φ = 4133414304.

The previous prime is 12401442377. The next prime is 12401442437. The reversal of 12401442426 is 62424410421.

It is a junction number, because it is equal to n+sod(n) for n = 12401442393 and 12401442402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28870 + ... + 160113.

It is an arithmetic number, because the mean of its divisors is an integer number (1550330244).

Almost surely, 2^12401442426 is an apocalyptic number.

12401442426 is an abundant number, since it is smaller than the sum of its proper divisors (12403841478).

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

12401442426 is a wasteful number, since it uses less digits than its factorization.

12401442426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199925.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 12401442426 its reverse (62424410421), we get a palindrome (74825852847).

The spelling of 12401442426 in words is "twelve billion, four hundred one million, four hundred forty-two thousand, four hundred twenty-six".