340499856 has 40 divisors (see below), whose sum is σ = 894540960. Its totient is φ = 111575296.

The previous prime is 340499837. The next prime is 340499857. The reversal of 340499856 is 658994043.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (340499857) 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, 57285 + ... + 62948.

It is an arithmetic number, because the mean of its divisors is an integer number (22363524).

Almost surely, 2^340499856 is an apocalyptic number.

It is an amenable number.

340499856 is an abundant number, since it is smaller than the sum of its proper divisors (554041104).

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

340499856 is a wasteful number, since it uses less digits than its factorization.

340499856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120303 (or 120297 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 340499856 is about 18452.6381853653. The cubic root of 340499856 is about 698.2950726008.

The spelling of 340499856 in words is "three hundred forty million, four hundred ninety-nine thousand, eight hundred fifty-six".