1423415321 has 8 divisors (see below), whose sum is σ = 1522069704. Its totient is φ = 1326419200.

The previous prime is 1423415311. The next prime is 1423415333. The reversal of 1423415321 is 1235143241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 562638400 + 860776921 = 23720^2 + 29339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1423415321 - 2¹⁰ = 1423414297 is a prime.

It is a super-2 number, since 2×1423415321² = 4052222352115066082, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1423415311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412790 + ... + 416223.

It is an arithmetic number, because the mean of its divisors is an integer number (190258713).

Almost surely, 2^1423415321 is an apocalyptic number.

It is an amenable number.

1423415321 is a deficient number, since it is larger than the sum of its proper divisors (98654383).

1423415321 is a wasteful number, since it uses less digits than its factorization.

1423415321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829131.

The product of its digits is 2880, while the sum is 26.

The square root of 1423415321 is about 37728.1767516004. The cubic root of 1423415321 is about 1124.8912674501.

Adding to 1423415321 its reverse (1235143241), we get a palindrome (2658558562).

The spelling of 1423415321 in words is "one billion, four hundred twenty-three million, four hundred fifteen thousand, three hundred twenty-one".