1170394890 has 128 divisors (see below), whose sum is σ = 3309465600. Its totient is φ = 264769344.

The previous prime is 1170394879. The next prime is 1170394949. The reversal of 1170394890 is 984930711.

It is a happy number.

1170394890 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1170394890² = 2739648397076224200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1100499 + ... + 1101561.

It is an arithmetic number, because the mean of its divisors is an integer number (25855200).

Almost surely, 2^1170394890 is an apocalyptic number.

1170394890 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 1170394890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654732800).

1170394890 is an abundant number, since it is smaller than the sum of its proper divisors (2139070710).

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

1170394890 is a wasteful number, since it uses less digits than its factorization.

1170394890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1170394890 is about 34211.0346233492. The cubic root of 1170394890 is about 1053.8467786253.

The spelling of 1170394890 in words is "one billion, one hundred seventy million, three hundred ninety-four thousand, eight hundred ninety".