281379342 has 32 divisors (see below), whose sum is σ = 599193504. Its totient is φ = 87782400.

The previous prime is 281379337. The next prime is 281379349. The reversal of 281379342 is 243973182.

It is a self number, because there is not a number n which added to its sum of digits gives 281379342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281379349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10842 + ... + 26082.

It is an arithmetic number, because the mean of its divisors is an integer number (18724797).

Almost surely, 2^281379342 is an apocalyptic number.

281379342 is an abundant number, since it is smaller than the sum of its proper divisors (317814162).

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

281379342 is a wasteful number, since it uses less digits than its factorization.

281379342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15444.

The product of its digits is 72576, while the sum is 39.

The square root of 281379342 is about 16774.3656213879. The cubic root of 281379342 is about 655.2857692883.

The spelling of 281379342 in words is "two hundred eighty-one million, three hundred seventy-nine thousand, three hundred forty-two".