288695442 has 64 divisors (see below), whose sum is σ = 671514624. Its totient is φ = 81045120.

The previous prime is 288695419. The next prime is 288695489. The reversal of 288695442 is 244596882.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 288695391 and 288695400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 753583 + ... + 753965.

It is an arithmetic number, because the mean of its divisors is an integer number (10492416).

Almost surely, 2^288695442 is an apocalyptic number.

288695442 is an abundant number, since it is smaller than the sum of its proper divisors (382819182).

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

288695442 is a wasteful number, since it uses less digits than its factorization.

288695442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663.

The product of its digits is 1105920, while the sum is 48.

The square root of 288695442 is about 16991.0400505678. The cubic root of 288695442 is about 660.9165731706.

The spelling of 288695442 in words is "two hundred eighty-eight million, six hundred ninety-five thousand, four hundred forty-two".