290128967 has 8 divisors (see below), whose sum is σ = 291492432. Its totient is φ = 288769600.

The previous prime is 290128957. The next prime is 290129023. The reversal of 290128967 is 769821092.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 290128967 - 2⁸ = 290128711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290128957) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 350408 + ... + 351234.

It is an arithmetic number, because the mean of its divisors is an integer number (36436554).

Almost surely, 2^290128967 is an apocalyptic number.

290128967 is a deficient number, since it is larger than the sum of its proper divisors (1363465).

290128967 is an equidigital number, since it uses as much as digits as its factorization.

290128967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 290128967 is about 17033.1725465340. The cubic root of 290128967 is about 662.0087005182.

The spelling of 290128967 in words is "two hundred ninety million, one hundred twenty-eight thousand, nine hundred sixty-seven".