1219234920 has 64 divisors (see below), whose sum is σ = 3667248000. Its totient is φ = 324281088.

The previous prime is 1219234909. The next prime is 1219234931. The reversal of 1219234920 is 294329121.

It is an interprime number because it is at equal distance from previous prime (1219234909) and next prime (1219234931).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33621 + ... + 59739.

It is an arithmetic number, because the mean of its divisors is an integer number (57300750).

Almost surely, 2^1219234920 is an apocalyptic number.

1219234920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1219234920 is an abundant number, since it is smaller than the sum of its proper divisors (2448013080).

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

1219234920 is a wasteful number, since it uses less digits than its factorization.

1219234920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26522 (or 26518 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1219234920 is about 34917.5445872129. The cubic root of 1219234920 is about 1068.3063198547.

The spelling of 1219234920 in words is "one billion, two hundred nineteen million, two hundred thirty-four thousand, nine hundred twenty".