340121634 has 16 divisors (see below), whose sum is σ = 680838240. Its totient is φ = 113274720.

The previous prime is 340121597. The next prime is 340121647. The reversal of 340121634 is 436121043.

It is an unprimeable number.

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, 17179 + ... + 31230.

It is an arithmetic number, because the mean of its divisors is an integer number (42552390).

Almost surely, 2^340121634 is an apocalyptic number.

340121634 is an abundant number, since it is smaller than the sum of its proper divisors (340716606).

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

340121634 is a wasteful number, since it uses less digits than its factorization.

340121634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49585.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 340121634 is about 18442.3868845657. The cubic root of 340121634 is about 698.0364250031.

Adding to 340121634 its reverse (436121043), we get a palindrome (776242677).

The spelling of 340121634 in words is "three hundred forty million, one hundred twenty-one thousand, six hundred thirty-four".