340577878 has 4 divisors (see below), whose sum is σ = 510866820. Its totient is φ = 170288938.

The previous prime is 340577863. The next prime is 340577891. The reversal of 340577878 is 878775043.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85144468 + ... + 85144471.

It is an arithmetic number, because the mean of its divisors is an integer number (127716705).

Almost surely, 2^340577878 is an apocalyptic number.

340577878 is a deficient number, since it is larger than the sum of its proper divisors (170288942).

340577878 is a wasteful number, since it uses less digits than its factorization.

340577878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170288941.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The square root of 340577878 is about 18454.7521793168. The cubic root of 340577878 is about 698.3484042116.

The spelling of 340577878 in words is "three hundred forty million, five hundred seventy-seven thousand, eight hundred seventy-eight".