421254213 has 32 divisors (see below), whose sum is σ = 595805952. Its totient is φ = 264384000.

The previous prime is 421254209. The next prime is 421254217. The reversal of 421254213 is 312452124.

It is an interprime number because it is at equal distance from previous prime (421254209) and next prime (421254217).

It is not a de Polignac number, because 421254213 - 2² = 421254209 is a prime.

It is a super-2 number, since 2×421254213² = 354910223940498738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421254217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 686895 + ... + 687507.

It is an arithmetic number, because the mean of its divisors is an integer number (18618936).

Almost surely, 2^421254213 is an apocalyptic number.

It is an amenable number.

421254213 is a deficient number, since it is larger than the sum of its proper divisors (174551739).

421254213 is a wasteful number, since it uses less digits than its factorization.

421254213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

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

The square root of 421254213 is about 20524.4783855766. The cubic root of 421254213 is about 749.6319456331.

The spelling of 421254213 in words is "four hundred twenty-one million, two hundred fifty-four thousand, two hundred thirteen".