342978277 has 8 divisors (see below), whose sum is σ = 366214464. Its totient is φ = 320435808.

The previous prime is 342978241. The next prime is 342978283. The reversal of 342978277 is 772879243.

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

It is a cyclic number.

It is not a de Polignac number, because 342978277 - 2¹¹ = 342976229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342978277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342978217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172408 + ... + 174385.

It is an arithmetic number, because the mean of its divisors is an integer number (45776808).

Almost surely, 2^342978277 is an apocalyptic number.

It is an amenable number.

342978277 is a deficient number, since it is larger than the sum of its proper divisors (23236187).

342978277 is a wasteful number, since it uses less digits than its factorization.

342978277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346859.

The product of its digits is 1185408, while the sum is 49.

The square root of 342978277 is about 18519.6727022915. The cubic root of 342978277 is about 699.9852221370.

The spelling of 342978277 in words is "three hundred forty-two million, nine hundred seventy-eight thousand, two hundred seventy-seven".