289401432 has 16 divisors (see below), whose sum is σ = 723503640. Its totient is φ = 96467136.

The previous prime is 289401379. The next prime is 289401439. The reversal of 289401432 is 234104982.

It is a junction number, because it is equal to n+sod(n) for n = 289401393 and 289401402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289401439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6029173 + ... + 6029220.

Almost surely, 2^289401432 is an apocalyptic number.

It is an amenable number.

289401432 is an abundant number, since it is smaller than the sum of its proper divisors (434102208).

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

289401432 is a wasteful number, since it uses less digits than its factorization.

289401432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12058402 (or 12058398 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 289401432 is about 17011.8027263427. The cubic root of 289401432 is about 661.4548805473.

The spelling of 289401432 in words is "two hundred eighty-nine million, four hundred one thousand, four hundred thirty-two".