340030440413 has 4 divisors (see below), whose sum is σ = 340031861820. Its totient is φ = 340029019008.

The previous prime is 340030440403. The next prime is 340030440473. The reversal of 340030440413 is 314044030043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314044030043 = 67 ⋅4687224329.

It can be written as a sum of positive squares in 2 ways, for example, as 205515342244 + 134515098169 = 453338^2 + 366763^2 .

It is a cyclic number.

It is not a de Polignac number, because 340030440413 - 2⁶ = 340030440349 is a prime.

It is a super-2 number, since 2×340030440413² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340030440403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254078 + ... + 862911.

It is an arithmetic number, because the mean of its divisors is an integer number (85007965455).

Almost surely, 2^340030440413 is an apocalyptic number.

It is an amenable number.

340030440413 is a deficient number, since it is larger than the sum of its proper divisors (1421407).

340030440413 is a wasteful number, since it uses less digits than its factorization.

340030440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421406.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 340030440413 its reverse (314044030043), we get a palindrome (654074470456).

The spelling of 340030440413 in words is "three hundred forty billion, thirty million, four hundred forty thousand, four hundred thirteen".