405057643450 has 24 divisors (see below), whose sum is σ = 758396682720. Its totient is φ = 160950054000.

The previous prime is 405057643429. The next prime is 405057643469. The reversal of 405057643450 is 54346750504.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 405057643397 and 405057643406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26817460 + ... + 26832559.

It is an arithmetic number, because the mean of its divisors is an integer number (31599861780).

Almost surely, 2^405057643450 is an apocalyptic number.

405057643450 is a deficient number, since it is larger than the sum of its proper divisors (353339039270).

405057643450 is a wasteful number, since it uses less digits than its factorization.

405057643450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53650182 (or 53650177 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 43.

The spelling of 405057643450 in words is "four hundred five billion, fifty-seven million, six hundred forty-three thousand, four hundred fifty".