162989444 has 36 divisors (see below), whose sum is σ = 298197900. Its totient is φ = 77941440.

The previous prime is 162989443. The next prime is 162989459. The reversal of 162989444 is 444989261.

It can be written as a sum of positive squares in 2 ways, for example, as 75342400 + 87647044 = 8680^2 + 9362^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162989441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418802 + ... + 419190.

It is an arithmetic number, because the mean of its divisors is an integer number (8283275).

Almost surely, 2^162989444 is an apocalyptic number.

It is an amenable number.

162989444 is a deficient number, since it is larger than the sum of its proper divisors (135208456).

162989444 is a wasteful number, since it uses less digits than its factorization.

162989444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 531 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 162989444 is about 12766.7319232449. The cubic root of 162989444 is about 546.2437649029.

The spelling of 162989444 in words is "one hundred sixty-two million, nine hundred eighty-nine thousand, four hundred forty-four".