1242906576 has 20 divisors (see below), whose sum is σ = 3210842112. Its totient is φ = 414302176.

The previous prime is 1242906557. The next prime is 1242906611. The reversal of 1242906576 is 6756092421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12946896 + ... + 12946991.

Almost surely, 2^1242906576 is an apocalyptic number.

1242906576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1242906576 is an abundant number, since it is smaller than the sum of its proper divisors (1967935536).

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

1242906576 is a wasteful number, since it uses less digits than its factorization.

1242906576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25893898 (or 25893892 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1242906576 is about 35254.8801728215. The cubic root of 1242906576 is about 1075.1758359569.

Adding to 1242906576 its reverse (6756092421), we get a palindrome (7998998997).

The spelling of 1242906576 in words is "one billion, two hundred forty-two million, nine hundred six thousand, five hundred seventy-six".