2423423421 has 16 divisors (see below), whose sum is σ = 3603614400. Its totient is φ = 1609604784.

The previous prime is 2423423399. The next prime is 2423423461. The reversal of 2423423421 is 1243243242.

2423423421 is a `hidden beast` number, since 2 + 4 + 234 + 2 + 3 + 421 = 666.

It is not a de Polignac number, because 2423423421 - 2²⁵ = 2389868989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423423461) 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, 159571 + ... + 174096.

It is an arithmetic number, because the mean of its divisors is an integer number (225225900).

Almost surely, 2^2423423421 is an apocalyptic number.

It is an amenable number.

2423423421 is a deficient number, since it is larger than the sum of its proper divisors (1180190979).

2423423421 is a wasteful number, since it uses less digits than its factorization.

2423423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333945 (or 333939 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 2423423421 is about 49228.2786719178. The cubic root of 2423423421 is about 1343.2074758001.

Adding to 2423423421 its reverse (1243243242), we get a palindrome (3666666663).

The spelling of 2423423421 in words is "two billion, four hundred twenty-three million, four hundred twenty-three thousand, four hundred twenty-one".