1205042426 has 32 divisors (see below), whose sum is σ = 2082144000. Its totient is φ = 512376192.

The previous prime is 1205042411. The next prime is 1205042429. The reversal of 1205042426 is 6242405021.

It is a junction number, because it is equal to n+sod(n) for n = 1205042395 and 1205042404.

It is not an unprimeable number, because it can be changed into a prime (1205042429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310795 + ... + 1311713.

It is an arithmetic number, because the mean of its divisors is an integer number (65067000).

Almost surely, 2^1205042426 is an apocalyptic number.

1205042426 is a deficient number, since it is larger than the sum of its proper divisors (877101574).

1205042426 is a wasteful number, since it uses less digits than its factorization.

1205042426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1205042426 is about 34713.7210048131. The cubic root of 1205042426 is about 1064.1449273302.

Adding to 1205042426 its reverse (6242405021), we get a palindrome (7447447447).

The spelling of 1205042426 in words is "one billion, two hundred five million, forty-two thousand, four hundred twenty-six".