1260401242 has 16 divisors (see below), whose sum is σ = 1976487552. Its totient is φ = 601674480.

The previous prime is 1260401237. The next prime is 1260401273. The reversal of 1260401242 is 2421040621.

It is a happy number.

It is a super-2 number, since 2×1260401242² = 3177222581670285128, which contains 22 as substring.

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, 438 + ... + 50209.

It is an arithmetic number, because the mean of its divisors is an integer number (123530472).

Almost surely, 2^1260401242 is an apocalyptic number.

1260401242 is a deficient number, since it is larger than the sum of its proper divisors (716086310).

1260401242 is a wasteful number, since it uses less digits than its factorization.

1260401242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51213.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1260401242 is about 35502.1301051078. The cubic root of 1260401242 is about 1080.1969353949.

Adding to 1260401242 its reverse (2421040621), we get a palindrome (3681441863).

The spelling of 1260401242 in words is "one billion, two hundred sixty million, four hundred one thousand, two hundred forty-two".