405251412 has 48 divisors (see below), whose sum is σ = 969400320. Its totient is φ = 131719392.

The previous prime is 405251369. The next prime is 405251419. The reversal of 405251412 is 214152504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405251419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87663 + ... + 92169.

It is an arithmetic number, because the mean of its divisors is an integer number (20195840).

Almost surely, 2^405251412 is an apocalyptic number.

It is an amenable number.

405251412 is an abundant number, since it is smaller than the sum of its proper divisors (564148908).

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

405251412 is a wasteful number, since it uses less digits than its factorization.

405251412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700 (or 4698 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 405251412 is about 20130.8572097663. The cubic root of 405251412 is about 740.0166857694.

The spelling of 405251412 in words is "four hundred five million, two hundred fifty-one thousand, four hundred twelve".