340556340 has 48 divisors (see below), whose sum is σ = 959898240. Its totient is φ = 90211200.

The previous prime is 340556329. The next prime is 340556347. The reversal of 340556340 is 43655043.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 340556298 and 340556307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340556347) 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 15 ways as a sum of consecutive naturals, for example, 9735 + ... + 27854.

It is an arithmetic number, because the mean of its divisors is an integer number (19997880).

Almost surely, 2^340556340 is an apocalyptic number.

340556340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340556340 is an abundant number, since it is smaller than the sum of its proper divisors (619341900).

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

340556340 is a wasteful number, since it uses less digits than its factorization.

340556340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37752 (or 37750 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 340556340 is about 18454.1686347557. The cubic root of 340556340 is about 698.3336828160. Note that the first 3 decimals are identical.

The spelling of 340556340 in words is "three hundred forty million, five hundred fifty-six thousand, three hundred forty".