12340576437 has 32 divisors (see below), whose sum is σ = 20958796800. Its totient is φ = 6287632128.

The previous prime is 12340576421. The next prime is 12340576439. The reversal of 12340576437 is 73467504321.

It is not a de Polignac number, because 12340576437 - 2⁴ = 12340576421 is a prime.

It is a super-2 number, since 2×12340576437² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340576439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902887 + ... + 916452.

It is an arithmetic number, because the mean of its divisors is an integer number (654962400).

Almost surely, 2^12340576437 is an apocalyptic number.

12340576437 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12340576437 is a deficient number, since it is larger than the sum of its proper divisors (8618220363).

12340576437 is a wasteful number, since it uses less digits than its factorization.

12340576437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819385.

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 12340576437 in words is "twelve billion, three hundred forty million, five hundred seventy-six thousand, four hundred thirty-seven".