281020942 has 8 divisors (see below), whose sum is σ = 423281232. Its totient is φ = 139927200.

The previous prime is 281020937. The next prime is 281020951. The reversal of 281020942 is 249020182.

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

It is a self number, because there is not a number n which added to its sum of digits gives 281020942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291034 + ... + 291997.

It is an arithmetic number, because the mean of its divisors is an integer number (52910154).

Almost surely, 2^281020942 is an apocalyptic number.

281020942 is a deficient number, since it is larger than the sum of its proper divisors (142260290).

281020942 is a wasteful number, since it uses less digits than its factorization.

281020942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583274.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 281020942 is about 16763.6792500930. The cubic root of 281020942 is about 655.0074330489.

The spelling of 281020942 in words is "two hundred eighty-one million, twenty thousand, nine hundred forty-two".