340440523444 has 12 divisors (see below), whose sum is σ = 680881046944. Its totient is φ = 145903081464.

The previous prime is 340440523429. The next prime is 340440523457. The reversal of 340440523444 is 444325044043.

340440523444 is an admirable number.

It is a super-2 number, since 2×340440523444² (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 3 ways as a sum of consecutive naturals, for example, 6079295034 + ... + 6079295089.

Almost surely, 2^340440523444 is an apocalyptic number.

It is an amenable number.

340440523444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

340440523444 is a wasteful number, since it uses less digits than its factorization.

340440523444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12158590134 (or 12158590132 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 37.

Adding to 340440523444 its reverse (444325044043), we get a palindrome (784765567487).

The spelling of 340440523444 in words is "three hundred forty billion, four hundred forty million, five hundred twenty-three thousand, four hundred forty-four".