421525414 has 8 divisors (see below), whose sum is σ = 652684608. Its totient is φ = 203963880.

The previous prime is 421525397. The next prime is 421525427. The reversal of 421525414 is 414525124.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3399337 + ... + 3399460.

It is an arithmetic number, because the mean of its divisors is an integer number (81585576).

Almost surely, 2^421525414 is an apocalyptic number.

421525414 is a deficient number, since it is larger than the sum of its proper divisors (231159194).

421525414 is a wasteful number, since it uses less digits than its factorization.

421525414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798830.

The product of its digits is 6400, while the sum is 28.

The square root of 421525414 is about 20531.0840921759. The cubic root of 421525414 is about 749.7927806781.

The spelling of 421525414 in words is "four hundred twenty-one million, five hundred twenty-five thousand, four hundred fourteen".