1226908158 has 96 divisors (see below), whose sum is σ = 2917845504. Its totient is φ = 342857088.

The previous prime is 1226908093. The next prime is 1226908169. The reversal of 1226908158 is 8518096221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3342891 + ... + 3343257.

It is an arithmetic number, because the mean of its divisors is an integer number (30394224).

Almost surely, 2^1226908158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226908158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458922752).

1226908158 is an abundant number, since it is smaller than the sum of its proper divisors (1690937346).

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

1226908158 is a wasteful number, since it uses less digits than its factorization.

1226908158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1226908158 is about 35027.2487929041. The cubic root of 1226908158 is about 1070.5427583827.

The spelling of 1226908158 in words is "one billion, two hundred twenty-six million, nine hundred eight thousand, one hundred fifty-eight".