340648140 has 48 divisors (see below), whose sum is σ = 1090075392. Its totient is φ = 77862336.

The previous prime is 340648127. The next prime is 340648141. The reversal of 340648140 is 41846043.

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 = 340648098 and 340648107.

It is not an unprimeable number, because it can be changed into a prime (340648141) 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, 405114 + ... + 405953.

It is an arithmetic number, because the mean of its divisors is an integer number (22709904).

Almost surely, 2^340648140 is an apocalyptic number.

340648140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340648140 is an abundant number, since it is smaller than the sum of its proper divisors (749427252).

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

340648140 is a wasteful number, since it uses less digits than its factorization.

340648140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811086 (or 811084 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 340648140 is about 18456.6557100684. The cubic root of 340648140 is about 698.3964245371.

The spelling of 340648140 in words is "three hundred forty million, six hundred forty-eight thousand, one hundred forty".