289932542 has 4 divisors (see below), whose sum is σ = 434898816. Its totient is φ = 144966270.

The previous prime is 289932523. The next prime is 289932551. The reversal of 289932542 is 245239982.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 289932493 and 289932502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72483134 + ... + 72483137.

It is an arithmetic number, because the mean of its divisors is an integer number (108724704).

Almost surely, 2^289932542 is an apocalyptic number.

289932542 is a deficient number, since it is larger than the sum of its proper divisors (144966274).

289932542 is a wasteful number, since it uses less digits than its factorization.

289932542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144966273.

The product of its digits is 311040, while the sum is 44.

The square root of 289932542 is about 17027.4056156538. The cubic root of 289932542 is about 661.8592676446.

The spelling of 289932542 in words is "two hundred eighty-nine million, nine hundred thirty-two thousand, five hundred forty-two".