160440990 has 32 divisors (see below), whose sum is σ = 385391520. Its totient is φ = 42747264.

The previous prime is 160440989. The next prime is 160441009. The reversal of 160440990 is 99044061.

It is a super-2 number, since 2×160440990² = 51482622544360200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66892 + ... + 69248.

It is an arithmetic number, because the mean of its divisors is an integer number (12043485).

Almost surely, 2^160440990 is an apocalyptic number.

160440990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160440990 is an abundant number, since it is smaller than the sum of its proper divisors (224950530).

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

160440990 is a wasteful number, since it uses less digits than its factorization.

160440990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 160440990 is about 12666.5303062836. The cubic root of 160440990 is about 543.3818287183.

The spelling of 160440990 in words is "one hundred sixty million, four hundred forty thousand, nine hundred ninety".