289600040 has 16 divisors (see below), whose sum is σ = 651600180. Its totient is φ = 115840000.

The previous prime is 289600021. The next prime is 289600079. The reversal of 289600040 is 40006982.

It can be written as a sum of positive squares in 2 ways, for example, as 255424324 + 34175716 = 15982^2 + 5846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 289599976 and 289600012.

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 3 ways as a sum of consecutive naturals, for example, 3619961 + ... + 3620040.

Almost surely, 2^289600040 is an apocalyptic number.

289600040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289600040 is an abundant number, since it is smaller than the sum of its proper divisors (362000140).

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

289600040 is a wasteful number, since it uses less digits than its factorization.

289600040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7240012 (or 7240008 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 289600040 is about 17017.6390841973. The cubic root of 289600040 is about 661.6061585254.

The spelling of 289600040 in words is "two hundred eighty-nine million, six hundred thousand, forty".