340620189440 has 72 divisors (see below), whose sum is σ = 821761951920. Its totient is φ = 135267803136.

The previous prime is 340620189439. The next prime is 340620189491. The reversal of 340620189440 is 44981026043.

It is a super-2 number, since 2×340620189440² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779309 + ... + 1135148.

Almost surely, 2^340620189440 is an apocalyptic number.

It is an amenable number.

340620189440 is an abundant number, since it is smaller than the sum of its proper divisors (481141762480).

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

340620189440 is a wasteful number, since it uses less digits than its factorization.

340620189440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914617 (or 1914603 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 340620189440 in words is "three hundred forty billion, six hundred twenty million, one hundred eighty-nine thousand, four hundred forty".