1442475405 has 64 divisors (see below), whose sum is σ = 2972160000. Its totient is φ = 650099520.

The previous prime is 1442475403. The next prime is 1442475409. The reversal of 1442475405 is 5045742441.

1442475405 is a `hidden beast` number, since 1 + 4 + 4 + 247 + 5 + 405 = 666.

It is not a de Polignac number, because 1442475405 - 2¹ = 1442475403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442475405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442475403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56346 + ... + 77844.

It is an arithmetic number, because the mean of its divisors is an integer number (46440000).

Almost surely, 2^1442475405 is an apocalyptic number.

1442475405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1442475405 is an abundant number, since it is smaller than the sum of its proper divisors (1529684595).

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

1442475405 is a wasteful number, since it uses less digits than its factorization.

1442475405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21591 (or 21585 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

The square root of 1442475405 is about 37979.9342416492. The cubic root of 1442475405 is about 1129.8899323706.

The spelling of 1442475405 in words is "one billion, four hundred forty-two million, four hundred seventy-five thousand, four hundred five".