346057778 has 16 divisors (see below), whose sum is σ = 571475520. Its totient is φ = 155854800.

The previous prime is 346057771. The next prime is 346057799. The reversal of 346057778 is 877750643.

It is not an unprimeable number, because it can be changed into a prime (346057771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69758 + ... + 74553.

It is an arithmetic number, because the mean of its divisors is an integer number (35717220).

Almost surely, 2^346057778 is an apocalyptic number.

346057778 is a deficient number, since it is larger than the sum of its proper divisors (225417742).

346057778 is a wasteful number, since it uses less digits than its factorization.

346057778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144433.

The product of its (nonzero) digits is 987840, while the sum is 47.

The square root of 346057778 is about 18602.6282551687. The cubic root of 346057778 is about 702.0739702305.

The spelling of 346057778 in words is "three hundred forty-six million, fifty-seven thousand, seven hundred seventy-eight".