421252413 has 16 divisors (see below), whose sum is σ = 570877440. Its totient is φ = 276251904.

The previous prime is 421252393. The next prime is 421252417. The reversal of 421252413 is 314252124.

It is not a de Polignac number, because 421252413 - 2⁸ = 421252157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421252417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87220 + ... + 91922.

It is an arithmetic number, because the mean of its divisors is an integer number (35679840).

Almost surely, 2^421252413 is an apocalyptic number.

It is an amenable number.

421252413 is a deficient number, since it is larger than the sum of its proper divisors (149625027).

421252413 is a wasteful number, since it uses less digits than its factorization.

421252413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188.

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

The square root of 421252413 is about 20524.4345354507. The cubic root of 421252413 is about 749.6308779172.

The spelling of 421252413 in words is "four hundred twenty-one million, two hundred fifty-two thousand, four hundred thirteen".