342978361 has 12 divisors (see below), whose sum is σ = 377954640. Its totient is φ = 308666280.

The previous prime is 342978347. The next prime is 342978371. The reversal of 342978361 is 163879243.

It is not a de Polignac number, because 342978361 - 2¹¹ = 342976313 is a prime.

It is a super-2 number, since 2×342978361² = 235268312228492642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342978301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115230 + ... + 118168.

It is an arithmetic number, because the mean of its divisors is an integer number (31496220).

Almost surely, 2^342978361 is an apocalyptic number.

It is an amenable number.

342978361 is a deficient number, since it is larger than the sum of its proper divisors (34976279).

342978361 is a wasteful number, since it uses less digits than its factorization.

342978361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156 (or 3053 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 342978361 is about 18519.6749701500. The cubic root of 342978361 is about 699.9852792823.

The spelling of 342978361 in words is "three hundred forty-two million, nine hundred seventy-eight thousand, three hundred sixty-one".