1224442992 has 40 divisors (see below), whose sum is σ = 3329628160. Its totient is φ = 386665920.

The previous prime is 1224442987. The next prime is 1224442993. The reversal of 1224442992 is 2992444221.

It is a self number, because there is not a number n which added to its sum of digits gives 1224442992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224442993) 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, 670384 + ... + 672207.

It is an arithmetic number, because the mean of its divisors is an integer number (83240704).

Almost surely, 2^1224442992 is an apocalyptic number.

1224442992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224442992 is an abundant number, since it is smaller than the sum of its proper divisors (2105185168).

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

1224442992 is a wasteful number, since it uses less digits than its factorization.

1224442992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342621 (or 1342615 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 1224442992 is about 34992.0418381094. The cubic root of 1224442992 is about 1069.8252813972.

The spelling of 1224442992 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, nine hundred ninety-two".