1242311646 has 8 divisors (see below), whose sum is σ = 2484623304. Its totient is φ = 414103880.

The previous prime is 1242311633. The next prime is 1242311677. The reversal of 1242311646 is 6461132421.

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

1242311646 is an admirable number.

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, 103525965 + ... + 103525976.

It is an arithmetic number, because the mean of its divisors is an integer number (310577913).

Almost surely, 2^1242311646 is an apocalyptic number.

1242311646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1242311646 is a wasteful number, since it uses less digits than its factorization.

1242311646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207051946.

The product of its digits is 6912, while the sum is 30.

The square root of 1242311646 is about 35246.4416076290. The cubic root of 1242311646 is about 1075.0042605925.

The spelling of 1242311646 in words is "one billion, two hundred forty-two million, three hundred eleven thousand, six hundred forty-six".