342978637 has 8 divisors (see below), whose sum is σ = 357294080. Its totient is φ = 328866480.

The previous prime is 342978619. The next prime is 342978667. The reversal of 342978637 is 736879243.

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 342978637 - 2¹¹ = 342976589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342978607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47373 + ... + 54130.

It is an arithmetic number, because the mean of its divisors is an integer number (44661760).

Almost surely, 2^342978637 is an apocalyptic number.

It is an amenable number.

342978637 is a deficient number, since it is larger than the sum of its proper divisors (14315443).

342978637 is a wasteful number, since it uses less digits than its factorization.

342978637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101643.

The product of its digits is 1524096, while the sum is 49.

The square root of 342978637 is about 18519.6824216832. The cubic root of 342978637 is about 699.9854670452.

The spelling of 342978637 in words is "three hundred forty-two million, nine hundred seventy-eight thousand, six hundred thirty-seven".