499993238405 has 8 divisors (see below), whose sum is σ = 635285526552. Its totient is φ = 376465497088.

The previous prime is 499993238401. The next prime is 499993238441. The reversal of 499993238405 is 504832399994.

It is a Cunningham number, because it is equal to 707102²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 11695557316 + 488297681089 = 108146^2 + 698783^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 499993238405 - 2² = 499993238401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499993238401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2941136612 + ... + 2941136781.

It is an arithmetic number, because the mean of its divisors is an integer number (79410690819).

Almost surely, 2^499993238405 is an apocalyptic number.

It is an amenable number.

499993238405 is a deficient number, since it is larger than the sum of its proper divisors (135292288147).

499993238405 is a wasteful number, since it uses less digits than its factorization.

499993238405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882273415.

The product of its (nonzero) digits is 75582720, while the sum is 65.

The spelling of 499993238405 in words is "four hundred ninety-nine billion, nine hundred ninety-three million, two hundred thirty-eight thousand, four hundred five".