425341421 has 8 divisors (see below), whose sum is σ = 449772288. Its totient is φ = 401580000.

The previous prime is 425341409. The next prime is 425341447. The reversal of 425341421 is 124143524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425341421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425341621) 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, 166055 + ... + 168596.

It is an arithmetic number, because the mean of its divisors is an integer number (56221536).

Almost surely, 2^425341421 is an apocalyptic number.

425341421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

425341421 is a deficient number, since it is larger than the sum of its proper divisors (24430867).

425341421 is a wasteful number, since it uses less digits than its factorization.

425341421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334723.

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

The square root of 425341421 is about 20623.8071412627. The cubic root of 425341421 is about 752.0485747680.

Adding to 425341421 its reverse (124143524), we get a palindrome (549484945).

The spelling of 425341421 in words is "four hundred twenty-five million, three hundred forty-one thousand, four hundred twenty-one".