289970274 has 16 divisors (see below), whose sum is σ = 632662560. Its totient is φ = 87869760.

The previous prime is 289970257. The next prime is 289970281. The reversal of 289970274 is 472079982.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196679 + ... + 2196810.

It is an arithmetic number, because the mean of its divisors is an integer number (39541410).

Almost surely, 2^289970274 is an apocalyptic number.

289970274 is an abundant number, since it is smaller than the sum of its proper divisors (342692286).

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

289970274 is a wasteful number, since it uses less digits than its factorization.

289970274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393505.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 289970274 is about 17028.5135581471. The cubic root of 289970274 is about 661.8879779904.

The spelling of 289970274 in words is "two hundred eighty-nine million, nine hundred seventy thousand, two hundred seventy-four".