1423452221 has 8 divisors (see below), whose sum is σ = 1491721920. Its totient is φ = 1355714272.

The previous prime is 1423452179. The next prime is 1423452229. The reversal of 1423452221 is 1222543241.

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 1423452221 - 2³⁰ = 349710397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423452229) 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, 127451 + ... + 138168.

It is an arithmetic number, because the mean of its divisors is an integer number (186465240).

Almost surely, 2^1423452221 is an apocalyptic number.

It is an amenable number.

1423452221 is a deficient number, since it is larger than the sum of its proper divisors (68269699).

1423452221 is a wasteful number, since it uses less digits than its factorization.

1423452221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265875.

The product of its digits is 3840, while the sum is 26.

The square root of 1423452221 is about 37728.6657728576. The cubic root of 1423452221 is about 1124.9009877635.

Adding to 1423452221 its reverse (1222543241), we get a palindrome (2645995462).

The spelling of 1423452221 in words is "one billion, four hundred twenty-three million, four hundred fifty-two thousand, two hundred twenty-one".