340743926985 has 32 divisors (see below), whose sum is σ = 679717757952. Its totient is φ = 141607865280.

The previous prime is 340743926983. The next prime is 340743927031. The reversal of 340743926985 is 589629347043.

It is not a de Polignac number, because 340743926985 - 2¹ = 340743926983 is a prime.

It is a super-2 number, since 2×340743926985² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340743926983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147507039 + ... + 147509348.

It is an arithmetic number, because the mean of its divisors is an integer number (21241179936).

Almost surely, 2^340743926985 is an apocalyptic number.

340743926985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340743926985 is a deficient number, since it is larger than the sum of its proper divisors (338973830967).

340743926985 is a wasteful number, since it uses less digits than its factorization.

340743926985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295016413.

The product of its (nonzero) digits is 39191040, while the sum is 60.

The spelling of 340743926985 in words is "three hundred forty billion, seven hundred forty-three million, nine hundred twenty-six thousand, nine hundred eighty-five".