1242495822 has 8 divisors (see below), whose sum is σ = 2484991656. Its totient is φ = 414165272.

The previous prime is 1242495817. The next prime is 1242495827. The reversal of 1242495822 is 2285942421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1242495817) and next prime (1242495827).

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

1242495822 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242495827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103541313 + ... + 103541324.

It is an arithmetic number, because the mean of its divisors is an integer number (310623957).

Almost surely, 2^1242495822 is an apocalyptic number.

1242495822 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.

1242495822 is a wasteful number, since it uses less digits than its factorization.

1242495822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207082642.

The product of its digits is 92160, while the sum is 39.

The square root of 1242495822 is about 35249.0542000775. The cubic root of 1242495822 is about 1075.0573820460.

The spelling of 1242495822 in words is "one billion, two hundred forty-two million, four hundred ninety-five thousand, eight hundred twenty-two".