288431542 has 12 divisors (see below), whose sum is σ = 503283780. Its totient is φ = 123613476.

The previous prime is 288431531. The next prime is 288431543. The reversal of 288431542 is 245134882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288431543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1471492 + ... + 1471687.

It is an arithmetic number, because the mean of its divisors is an integer number (41940315).

Almost surely, 2^288431542 is an apocalyptic number.

288431542 is a deficient number, since it is larger than the sum of its proper divisors (214852238).

288431542 is a wasteful number, since it uses less digits than its factorization.

288431542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943195 (or 2943188 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 288431542 is about 16983.2724172934. The cubic root of 288431542 is about 660.7151278289.

The spelling of 288431542 in words is "two hundred eighty-eight million, four hundred thirty-one thousand, five hundred forty-two".