1219812496 has 40 divisors (see below), whose sum is σ = 2715056384. Its totient is φ = 520058880.

The previous prime is 1219812469. The next prime is 1219812497. The reversal of 1219812496 is 6942189121.

It is not an unprimeable number, because it can be changed into a prime (1219812497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6600 + ... + 49831.

Almost surely, 2^1219812496 is an apocalyptic number.

1219812496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1219812496 is an abundant number, since it is smaller than the sum of its proper divisors (1495243888).

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

1219812496 is a wasteful number, since it uses less digits than its factorization.

1219812496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56639 (or 56633 counting only the distinct ones).

The product of its digits is 62208, while the sum is 43.

The square root of 1219812496 is about 34925.8141780546. The cubic root of 1219812496 is about 1068.4749859238.

The spelling of 1219812496 in words is "one billion, two hundred nineteen million, eight hundred twelve thousand, four hundred ninety-six".