423152421 has 8 divisors (see below), whose sum is σ = 576207744. Its totient is φ = 276099360.

The previous prime is 423152407. The next prime is 423152437. The reversal of 423152421 is 124251324.

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

It is not a de Polignac number, because 423152421 - 2⁶ = 423152357 is a prime.

It is a super-2 number, since 2×423152421² = 358115942796322482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423152391 and 423152400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423152441) 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, 1500400 + ... + 1500681.

It is an arithmetic number, because the mean of its divisors is an integer number (72025968).

Almost surely, 2^423152421 is an apocalyptic number.

It is an amenable number.

423152421 is a deficient number, since it is larger than the sum of its proper divisors (153055323).

423152421 is a wasteful number, since it uses less digits than its factorization.

423152421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001131.

The product of its digits is 1920, while the sum is 24.

The square root of 423152421 is about 20570.6689487727. The cubic root of 423152421 is about 750.7562274593.

The spelling of 423152421 in words is "four hundred twenty-three million, one hundred fifty-two thousand, four hundred twenty-one".