1219409044 has 24 divisors (see below), whose sum is σ = 2498303808. Its totient is φ = 509856960.

The previous prime is 1219409041. The next prime is 1219409047. The reversal of 1219409044 is 4409049121.

It is an interprime number because it is at equal distance from previous prime (1219409041) and next prime (1219409047).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219409041) 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, 529954 + ... + 532249.

It is an arithmetic number, because the mean of its divisors is an integer number (104095992).

Almost surely, 2^1219409044 is an apocalyptic number.

1219409044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1219409044 is an abundant number, since it is smaller than the sum of its proper divisors (1278894764).

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

1219409044 is a wasteful number, since it uses less digits than its factorization.

1219409044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062255 (or 1062253 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1219409044 is about 34920.0378579405. The cubic root of 1219409044 is about 1068.3571738540.

The spelling of 1219409044 in words is "one billion, two hundred nineteen million, four hundred nine thousand, forty-four".