287738942 has 8 divisors (see below), whose sum is σ = 433145232. Its totient is φ = 143357200.

The previous prime is 287738939. The next prime is 287738951. The reversal of 287738942 is 249837782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 255434 + ... + 256557.

It is an arithmetic number, because the mean of its divisors is an integer number (54143154).

Almost surely, 2^287738942 is an apocalyptic number.

287738942 is a deficient number, since it is larger than the sum of its proper divisors (145406290).

287738942 is a wasteful number, since it uses less digits than its factorization.

287738942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512274.

The product of its digits is 1354752, while the sum is 50.

The square root of 287738942 is about 16962.8695096083. The cubic root of 287738942 is about 660.1858536893.

The spelling of 287738942 in words is "two hundred eighty-seven million, seven hundred thirty-eight thousand, nine hundred forty-two".