421503414 has 16 divisors (see below), whose sum is σ = 843257280. Its totient is φ = 140459400.

The previous prime is 421503413. The next prime is 421503449. The reversal of 421503414 is 414305124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421503413) 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, 16989 + ... + 33639.

It is an arithmetic number, because the mean of its divisors is an integer number (52703580).

Almost surely, 2^421503414 is an apocalyptic number.

421503414 is an abundant number, since it is smaller than the sum of its proper divisors (421753866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421503414 is a wasteful number, since it uses less digits than its factorization.

421503414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20875.

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

The square root of 421503414 is about 20530.5483122103. The cubic root of 421503414 is about 749.7797362070.

Adding to 421503414 its reverse (414305124), we get a palindrome (835808538).

The spelling of 421503414 in words is "four hundred twenty-one million, five hundred three thousand, four hundred fourteen".