288632740 has 24 divisors (see below), whose sum is σ = 661231872. Its totient is φ = 104957280.

The previous prime is 288632713. The next prime is 288632761. The reversal of 288632740 is 47236882.

It is a junction number, because it is equal to n+sod(n) for n = 288632693 and 288632702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655764 + ... + 656203.

It is an arithmetic number, because the mean of its divisors is an integer number (27551328).

Almost surely, 2^288632740 is an apocalyptic number.

288632740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288632740 is an abundant number, since it is smaller than the sum of its proper divisors (372599132).

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

288632740 is a wasteful number, since it uses less digits than its factorization.

288632740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311987 (or 1311985 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 288632740 is about 16989.1948014024. The cubic root of 288632740 is about 660.8687213685.

The spelling of 288632740 in words is "two hundred eighty-eight million, six hundred thirty-two thousand, seven hundred forty".