289748148 has 48 divisors (see below), whose sum is σ = 697010496. Its totient is φ = 93623040.

The previous prime is 289748143. The next prime is 289748149. The reversal of 289748148 is 841847982.

It is a self number, because there is not a number n which added to its sum of digits gives 289748148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289748143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78390 + ... + 82002.

It is an arithmetic number, because the mean of its divisors is an integer number (14521052).

Almost surely, 2^289748148 is an apocalyptic number.

It is an amenable number.

289748148 is an abundant number, since it is smaller than the sum of its proper divisors (407262348).

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

289748148 is a wasteful number, since it uses less digits than its factorization.

289748148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824 (or 3822 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 51.

The square root of 289748148 is about 17021.9901304166. The cubic root of 289748148 is about 661.7189260801.

The spelling of 289748148 in words is "two hundred eighty-nine million, seven hundred forty-eight thousand, one hundred forty-eight".