289038394 has 16 divisors (see below), whose sum is σ = 438984000. Its totient is φ = 142718400.

The previous prime is 289038383. The next prime is 289038427. The reversal of 289038394 is 493830982.

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, 80857 + ... + 84355.

It is an arithmetic number, because the mean of its divisors is an integer number (27436500).

Almost surely, 2^289038394 is an apocalyptic number.

289038394 is a deficient number, since it is larger than the sum of its proper divisors (149945606).

289038394 is a wasteful number, since it uses less digits than its factorization.

289038394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 289038394 is about 17001.1291977915. The cubic root of 289038394 is about 661.1781786934.

The spelling of 289038394 in words is "two hundred eighty-nine million, thirty-eight thousand, three hundred ninety-four".