340405179297988 has 24 divisors (see below), whose sum is σ = 682174708040000. Its totient is φ = 145595573389728.

The previous prime is 340405179297973. The next prime is 340405179297991. The reversal of 340405179297988 is 889792971504043.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12181677243 + ... + 12181705186.

Almost surely, 2^{340405179297988} is an apocalyptic number.

It is an amenable number.

340405179297988 is an abundant number, since it is smaller than the sum of its proper divisors (341769528742012).

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

340405179297988 is a wasteful number, since it uses less digits than its factorization.

340405179297988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24363382939 (or 24363382937 counting only the distinct ones).

The product of its (nonzero) digits is 1097349120, while the sum is 76.

The spelling of 340405179297988 in words is "three hundred forty trillion, four hundred five billion, one hundred seventy-nine million, two hundred ninety-seven thousand, nine hundred eighty-eight".