1226078958 has 16 divisors (see below), whose sum is σ = 2640785616. Its totient is φ = 377255040.

The previous prime is 1226078951. The next prime is 1226078993. The reversal of 1226078958 is 8598706221.

It is a super-2 number, since 2×1226078958² = 3006539222500731528, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7859403 + ... + 7859558.

It is an arithmetic number, because the mean of its divisors is an integer number (165049101).

Almost surely, 2^1226078958 is an apocalyptic number.

1226078958 is an abundant number, since it is smaller than the sum of its proper divisors (1414706658).

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

1226078958 is a wasteful number, since it uses less digits than its factorization.

1226078958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15718979.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 1226078958 is about 35015.4102931838. The cubic root of 1226078958 is about 1070.3015302989.

The spelling of 1226078958 in words is "one billion, two hundred twenty-six million, seventy-eight thousand, nine hundred fifty-eight".