405343412 has 6 divisors (see below), whose sum is σ = 709350978. Its totient is φ = 202671704.

The previous prime is 405343373. The next prime is 405343429. The reversal of 405343412 is 214343504.

It can be written as a sum of positive squares in only one way, i.e., 208109476 + 197233936 = 14426^2 + 14044^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50667923 + ... + 50667930.

It is an arithmetic number, because the mean of its divisors is an integer number (118225163).

Almost surely, 2^405343412 is an apocalyptic number.

It is an amenable number.

405343412 is a deficient number, since it is larger than the sum of its proper divisors (304007566).

405343412 is a wasteful number, since it uses less digits than its factorization.

405343412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101335857 (or 101335855 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 405343412 is about 20133.1421293349. The cubic root of 405343412 is about 740.0726809547.

Adding to 405343412 its reverse (214343504), we get a palindrome (619686916).

The spelling of 405343412 in words is "four hundred five million, three hundred forty-three thousand, four hundred twelve".