1405212485 has 16 divisors (see below), whose sum is σ = 1816335360. Its totient is φ = 1040603520.

The previous prime is 1405212463. The next prime is 1405212491. The reversal of 1405212485 is 5842125041.

It is not a de Polignac number, because 1405212485 - 2¹⁰ = 1405211461 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193520 + ... + 200649.

It is an arithmetic number, because the mean of its divisors is an integer number (113520960).

Almost surely, 2^1405212485 is an apocalyptic number.

It is an amenable number.

1405212485 is a deficient number, since it is larger than the sum of its proper divisors (411122875).

1405212485 is a wasteful number, since it uses less digits than its factorization.

1405212485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394228.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 1405212485 is about 37486.1639141697. The cubic root of 1405212485 is about 1120.0755914648.

The spelling of 1405212485 in words is "one billion, four hundred five million, two hundred twelve thousand, four hundred eighty-five".