1485405021 has 48 divisors (see below), whose sum is σ = 2164574720. Its totient is φ = 904970880.

The previous prime is 1485405011. The next prime is 1485405079. The reversal of 1485405021 is 1205045841.

It is not a de Polignac number, because 1485405021 - 2⁶ = 1485404957 is a prime.

It is a super-3 number, since 3×1485405021³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1485405021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485405011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5362335 + ... + 5362611.

Almost surely, 2^1485405021 is an apocalyptic number.

It is an amenable number.

1485405021 is a deficient number, since it is larger than the sum of its proper divisors (679169699).

1485405021 is a wasteful number, since it uses less digits than its factorization.

1485405021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 1485405021 is about 38540.9525180684. The cubic root of 1485405021 is about 1140.9894510633.

The spelling of 1485405021 in words is "one billion, four hundred eighty-five million, four hundred five thousand, twenty-one".