406803340437 has 16 divisors (see below), whose sum is σ = 618488337600. Its totient is φ = 235614604032.

The previous prime is 406803340421. The next prime is 406803340459. The reversal of 406803340437 is 734043308604.

It is not a de Polignac number, because 406803340437 - 2⁴ = 406803340421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406803340417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306789187 + ... + 306790512.

It is an arithmetic number, because the mean of its divisors is an integer number (38655521100).

Almost surely, 2^406803340437 is an apocalyptic number.

It is an amenable number.

406803340437 is a deficient number, since it is larger than the sum of its proper divisors (211684997163).

406803340437 is a wasteful number, since it uses less digits than its factorization.

406803340437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613579732.

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 406803340437 in words is "four hundred six billion, eight hundred three million, three hundred forty thousand, four hundred thirty-seven".