405707052 has 24 divisors (see below), whose sum is σ = 947017456. Its totient is φ = 135183168.

The previous prime is 405707039. The next prime is 405707083. The reversal of 405707052 is 250707504.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37398 + ... + 47010.

Almost surely, 2^405707052 is an apocalyptic number.

It is an amenable number.

405707052 is an abundant number, since it is smaller than the sum of its proper divisors (541310404).

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

405707052 is a wasteful number, since it uses less digits than its factorization.

405707052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137 (or 13135 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 405707052 is about 20142.1709852737. The cubic root of 405707052 is about 740.2939251183.

The spelling of 405707052 in words is "four hundred five million, seven hundred seven thousand, fifty-two".