1242504680 has 16 divisors (see below), whose sum is σ = 2795635620. Its totient is φ = 497001856.

The previous prime is 1242504667. The next prime is 1242504709. The reversal of 1242504680 is 864052421.

It can be written as a sum of positive squares in 2 ways, for example, as 1073348644 + 169156036 = 32762^2 + 13006^2 .

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, 15531269 + ... + 15531348.

Almost surely, 2^1242504680 is an apocalyptic number.

1242504680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242504680 is an abundant number, since it is smaller than the sum of its proper divisors (1553130940).

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

1242504680 is a wasteful number, since it uses less digits than its factorization.

1242504680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31062628 (or 31062624 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 1242504680 is about 35249.1798486149. The cubic root of 1242504680 is about 1075.0599368060.

The spelling of 1242504680 in words is "one billion, two hundred forty-two million, five hundred four thousand, six hundred eighty".