2781254342 has 8 divisors (see below), whose sum is σ = 4306458432. Its totient is φ = 1345768200.

The previous prime is 2781254327. The next prime is 2781254347. The reversal of 2781254342 is 2434521872.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2781254296 and 2781254305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781254347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22429409 + ... + 22429532.

It is an arithmetic number, because the mean of its divisors is an integer number (538307304).

Almost surely, 2^2781254342 is an apocalyptic number.

2781254342 is a deficient number, since it is larger than the sum of its proper divisors (1525204090).

2781254342 is a wasteful number, since it uses less digits than its factorization.

2781254342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44858974.

The product of its digits is 107520, while the sum is 38.

The square root of 2781254342 is about 52737.5989404144. The cubic root of 2781254342 is about 1406.3073139123.

The spelling of 2781254342 in words is "two billion, seven hundred eighty-one million, two hundred fifty-four thousand, three hundred forty-two".