1242932849 has 8 divisors (see below), whose sum is σ = 1316831328. Its totient is φ = 1169121600.

The previous prime is 1242932807. The next prime is 1242932851. The reversal of 1242932849 is 9482392421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1242932849 - 2²⁸ = 974497393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1242931849) 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, 8774 + ... + 50624.

It is an arithmetic number, because the mean of its divisors is an integer number (164603916).

Almost surely, 2^1242932849 is an apocalyptic number.

It is an amenable number.

1242932849 is a deficient number, since it is larger than the sum of its proper divisors (73898479).

1242932849 is a wasteful number, since it uses less digits than its factorization.

1242932849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43615.

The product of its digits is 248832, while the sum is 44.

The square root of 1242932849 is about 35255.2527859325. The cubic root of 1242932849 is about 1075.1834117196.

The spelling of 1242932849 in words is "one billion, two hundred forty-two million, nine hundred thirty-two thousand, eight hundred forty-nine".