1242652417 has 8 divisors (see below), whose sum is σ = 1335388896. Its totient is φ = 1152098112.

The previous prime is 1242652403. The next prime is 1242652427. The reversal of 1242652417 is 7142562421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242652417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242652427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544363 + ... + 546640.

It is an arithmetic number, because the mean of its divisors is an integer number (166923612).

Almost surely, 2^1242652417 is an apocalyptic number.

1242652417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1242652417 is a deficient number, since it is larger than the sum of its proper divisors (92736479).

1242652417 is a wasteful number, since it uses less digits than its factorization.

1242652417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091087.

The product of its digits is 26880, while the sum is 34.

The square root of 1242652417 is about 35251.2753953669. The cubic root of 1242652417 is about 1075.1025442472.

The spelling of 1242652417 in words is "one billion, two hundred forty-two million, six hundred fifty-two thousand, four hundred seventeen".