289652090 has 32 divisors (see below), whose sum is σ = 641692800. Its totient is φ = 91669824.

The previous prime is 289652089. The next prime is 289652119. The reversal of 289652090 is 90256982.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158240 + ... + 160059.

It is an arithmetic number, because the mean of its divisors is an integer number (20052900).

Almost surely, 2^289652090 is an apocalyptic number.

289652090 is an abundant number, since it is smaller than the sum of its proper divisors (352040710).

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

289652090 is a wasteful number, since it uses less digits than its factorization.

289652090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318326.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 289652090 is about 17019.1683110545. The cubic root of 289652090 is about 661.6457931167.

The spelling of 289652090 in words is "two hundred eighty-nine million, six hundred fifty-two thousand, ninety".