423401571 has 12 divisors (see below), whose sum is σ = 612576120. Its totient is φ = 281808000.

The previous prime is 423401543. The next prime is 423401579. The reversal of 423401571 is 175104324.

It is not a de Polignac number, because 423401571 - 2⁹ = 423401059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423401579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32430 + ... + 43571.

It is an arithmetic number, because the mean of its divisors is an integer number (51048010).

Almost surely, 2^423401571 is an apocalyptic number.

423401571 is a deficient number, since it is larger than the sum of its proper divisors (189174549).

423401571 is a wasteful number, since it uses less digits than its factorization.

423401571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76626 (or 76623 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 423401571 is about 20576.7240103958. The cubic root of 423401571 is about 750.9035457031.

Adding to 423401571 its reverse (175104324), we get a palindrome (598505895).

The spelling of 423401571 in words is "four hundred twenty-three million, four hundred one thousand, five hundred seventy-one".