343464978 has 16 divisors (see below), whose sum is σ = 687117600. Its totient is φ = 114457056.

The previous prime is 343464977. The next prime is 343464997. The reversal of 343464978 is 879464343.

It is a super-2 number, since 2×343464978² = 235936382225080968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343464977) 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, 30201 + ... + 39987.

It is an arithmetic number, because the mean of its divisors is an integer number (42944850).

Almost surely, 2^343464978 is an apocalyptic number.

343464978 is an abundant number, since it is smaller than the sum of its proper divisors (343652622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343464978 is a wasteful number, since it uses less digits than its factorization.

343464978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15641.

The product of its digits is 1741824, while the sum is 48.

The square root of 343464978 is about 18532.8081520314. The cubic root of 343464978 is about 700.3161687393.

The spelling of 343464978 in words is "three hundred forty-three million, four hundred sixty-four thousand, nine hundred seventy-eight".