1423850445 has 12 divisors (see below), whose sum is σ = 2468007516. Its totient is φ = 759386880.

The previous prime is 1423850431. The next prime is 1423850479. The reversal of 1423850445 is 5440583241.

It is a happy number.

1423850445 is a `hidden beast` number, since 142 + 3 + 8 + 504 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1068113124 + 355737321 = 32682^2 + 18861^2 .

It is not a de Polignac number, because 1423850445 - 2¹⁰ = 1423849421 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 15820516 + ... + 15820605.

It is an arithmetic number, because the mean of its divisors is an integer number (205667293).

Almost surely, 2^1423850445 is an apocalyptic number.

1423850445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1423850445 is a deficient number, since it is larger than the sum of its proper divisors (1044157071).

1423850445 is a wasteful number, since it uses less digits than its factorization.

1423850445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31641132 (or 31641129 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 1423850445 is about 37733.9428764077. The cubic root of 1423850445 is about 1125.0058784878.

The spelling of 1423850445 in words is "one billion, four hundred twenty-three million, eight hundred fifty thousand, four hundred forty-five".