1171622490 has 64 divisors (see below), whose sum is σ = 2987103744. Its totient is φ = 293086208.

The previous prime is 1171622489. The next prime is 1171622497. The reversal of 1171622490 is 942261711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1171622497) 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, 158047 + ... + 165293.

It is an arithmetic number, because the mean of its divisors is an integer number (46673496).

Almost surely, 2^1171622490 is an apocalyptic number.

1171622490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171622490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493551872).

1171622490 is an abundant number, since it is smaller than the sum of its proper divisors (1815481254).

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

1171622490 is a wasteful number, since it uses less digits than its factorization.

1171622490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1171622490 is about 34228.9715007623. The cubic root of 1171622490 is about 1054.2151016783.

The spelling of 1171622490 in words is "one billion, one hundred seventy-one million, six hundred twenty-two thousand, four hundred ninety".