169490070 has 96 divisors (see below), whose sum is σ = 481178880. Its totient is φ = 42806880.

The previous prime is 169490011. The next prime is 169490071. The reversal of 169490070 is 70094961.

169490070 is a `hidden beast` number, since 169 + 490 + 0 + 7 + 0 = 666.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169490071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44335 + ... + 48005.

It is an arithmetic number, because the mean of its divisors is an integer number (5012280).

Almost surely, 2^169490070 is an apocalyptic number.

169490070 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 169490070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240589440).

169490070 is an abundant number, since it is smaller than the sum of its proper divisors (311688810).

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

169490070 is a wasteful number, since it uses less digits than its factorization.

169490070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 169490070 is about 13018.8352013535. The cubic root of 169490070 is about 553.4113811458.

The spelling of 169490070 in words is "one hundred sixty-nine million, four hundred ninety thousand, seventy".