1423235642 has 16 divisors (see below), whose sum is σ = 2192551200. Its totient is φ = 692624400.

The previous prime is 1423235573. The next prime is 1423235651. The reversal of 1423235642 is 2465323241.

It is a junction number, because it is equal to n+sod(n) for n = 1423235599 and 1423235608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47792 + ... + 71627.

It is an arithmetic number, because the mean of its divisors is an integer number (137034450).

Almost surely, 2^1423235642 is an apocalyptic number.

1423235642 is a deficient number, since it is larger than the sum of its proper divisors (769315558).

1423235642 is a wasteful number, since it uses less digits than its factorization.

1423235642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119581.

The product of its digits is 34560, while the sum is 32.

The square root of 1423235642 is about 37725.7954455569. The cubic root of 1423235642 is about 1124.8439334452.

Adding to 1423235642 its reverse (2465323241), we get a palindrome (3888558883).

The spelling of 1423235642 in words is "one billion, four hundred twenty-three million, two hundred thirty-five thousand, six hundred forty-two".