342748919 has 4 divisors (see below), whose sum is σ = 343032696. Its totient is φ = 342465144.

The previous prime is 342748891. The next prime is 342748949. The reversal of 342748919 is 919847243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342748919 is a prime.

It is a super-2 number, since 2×342748919² = 234953642951337122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342748949) 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, 140069 + ... + 142494.

It is an arithmetic number, because the mean of its divisors is an integer number (85758174).

Almost surely, 2^342748919 is an apocalyptic number.

342748919 is a deficient number, since it is larger than the sum of its proper divisors (283777).

342748919 is a wasteful number, since it uses less digits than its factorization.

342748919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283776.

The product of its digits is 435456, while the sum is 47.

The square root of 342748919 is about 18513.4793866523. The cubic root of 342748919 is about 699.8291549048.

The spelling of 342748919 in words is "three hundred forty-two million, seven hundred forty-eight thousand, nine hundred nineteen".