1226078952 has 128 divisors (see below), whose sum is σ = 3626726400. Its totient is φ = 338139648.

The previous prime is 1226078951. The next prime is 1226078993. The reversal of 1226078952 is 2598706221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1226078951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 641983 + ... + 643889.

It is an arithmetic number, because the mean of its divisors is an integer number (28333800).

Almost surely, 2^1226078952 is an apocalyptic number.

1226078952 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 1226078952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1813363200).

1226078952 is an abundant number, since it is smaller than the sum of its proper divisors (2400647448).

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

1226078952 is a wasteful number, since it uses less digits than its factorization.

1226078952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1226078952 is about 35015.4102075072. The cubic root of 1226078952 is about 1070.3015285530.

The spelling of 1226078952 in words is "one billion, two hundred twenty-six million, seventy-eight thousand, nine hundred fifty-two".