1423604442 has 32 divisors (see below), whose sum is σ = 3069218880. Its totient is φ = 437604480.

The previous prime is 1423604437. The next prime is 1423604443. The reversal of 1423604442 is 2444063241.

It is not an unprimeable number, because it can be changed into a prime (1423604443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76734 + ... + 93462.

It is an arithmetic number, because the mean of its divisors is an integer number (95913090).

Almost surely, 2^1423604442 is an apocalyptic number.

1423604442 is an abundant number, since it is smaller than the sum of its proper divisors (1645614438).

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

1423604442 is a wasteful number, since it uses less digits than its factorization.

1423604442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17838.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 1423604442 is about 37730.6830311883. The cubic root of 1423604442 is about 1124.9410845196.

Adding to 1423604442 its reverse (2444063241), we get a palindrome (3867667683).

The spelling of 1423604442 in words is "one billion, four hundred twenty-three million, six hundred four thousand, four hundred forty-two".