290075144 has 8 divisors (see below), whose sum is σ = 543890910. Its totient is φ = 145037568.

The previous prime is 290075143. The next prime is 290075183. The reversal of 290075144 is 441570092.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 266668900 + 23406244 = 16330^2 + 4838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 290075144.

It is not an unprimeable number, because it can be changed into a prime (290075143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18129689 + ... + 18129704.

Almost surely, 2^290075144 is an apocalyptic number.

It is an amenable number.

290075144 is a deficient number, since it is larger than the sum of its proper divisors (253815766).

290075144 is a wasteful number, since it uses less digits than its factorization.

290075144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36259399 (or 36259395 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 290075144 is about 17031.5925268308. The cubic root of 290075144 is about 661.9677606811.

The spelling of 290075144 in words is "two hundred ninety million, seventy-five thousand, one hundred forty-four".