1423423136 has 12 divisors (see below), whose sum is σ = 2802364362. Its totient is φ = 711711552.

The previous prime is 1423423087. The next prime is 1423423147. The reversal of 1423423136 is 6313243241.

It can be written as a sum of positive squares in only one way, i.e., 1342782736 + 80640400 = 36644^2 + 8980^2 .

It is a super-2 number, since 2×1423423136² = 4052266848200148992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1423423099 and 1423423108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22240955 + ... + 22241018.

Almost surely, 2^1423423136 is an apocalyptic number.

1423423136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1423423136 is a deficient number, since it is larger than the sum of its proper divisors (1378941226).

1423423136 is an equidigital number, since it uses as much as digits as its factorization.

1423423136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44481983 (or 44481975 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 1423423136 is about 37728.2803212656. The cubic root of 1423423136 is about 1124.8933261158.

Adding to 1423423136 its reverse (6313243241), we get a palindrome (7736666377).

The spelling of 1423423136 in words is "one billion, four hundred twenty-three million, four hundred twenty-three thousand, one hundred thirty-six".