1226419152 has 160 divisors (see below), whose sum is σ = 3752974080. Its totient is φ = 337858560.

The previous prime is 1226419141. The next prime is 1226419189. The reversal of 1226419152 is 2519146221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085724 + ... + 1086852.

It is an arithmetic number, because the mean of its divisors is an integer number (23456088).

Almost surely, 2^1226419152 is an apocalyptic number.

1226419152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226419152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876487040).

1226419152 is an abundant number, since it is smaller than the sum of its proper divisors (2526554928).

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

1226419152 is a wasteful number, since it uses less digits than its factorization.

1226419152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1255 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 1226419152 is about 35020.2677317007. The cubic root of 1226419152 is about 1070.4005115501.

The spelling of 1226419152 in words is "one billion, two hundred twenty-six million, four hundred nineteen thousand, one hundred fifty-two".