288989328 has 40 divisors (see below), whose sum is σ = 748389600. Its totient is φ = 96093184.

The previous prime is 288989249. The next prime is 288989333. The reversal of 288989328 is 823989882.

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, 12928 + ... + 27296.

It is an arithmetic number, because the mean of its divisors is an integer number (18709740).

Almost surely, 2^288989328 is an apocalyptic number.

It is an amenable number.

288989328 is an abundant number, since it is smaller than the sum of its proper divisors (459400272).

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

288989328 is a wasteful number, since it uses less digits than its factorization.

288989328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14799 (or 14793 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 57.

The square root of 288989328 is about 16999.6861147493. The cubic root of 288989328 is about 661.1407635898.

It can be divided in two parts, 28898 and 9328, that added together give a triangular number (38226 = T₂₇₆).

The spelling of 288989328 in words is "two hundred eighty-eight million, nine hundred eighty-nine thousand, three hundred twenty-eight".