421250441 has 4 divisors (see below), whose sum is σ = 431524884. Its totient is φ = 410976000.

The previous prime is 421250411. The next prime is 421250443. The reversal of 421250441 is 144052124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80478841 + 340771600 = 8971^2 + 18460^2 .

It is a cyclic number.

It is not a de Polignac number, because 421250441 - 2¹⁰ = 421249417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421250443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5137160 + ... + 5137241.

It is an arithmetic number, because the mean of its divisors is an integer number (107881221).

Almost surely, 2^421250441 is an apocalyptic number.

421250441 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

421250441 is a deficient number, since it is larger than the sum of its proper divisors (10274443).

421250441 is a wasteful number, since it uses less digits than its factorization.

421250441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10274442.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 421250441 is about 20524.3864950941. The cubic root of 421250441 is about 749.6297081717.

The spelling of 421250441 in words is "four hundred twenty-one million, two hundred fifty thousand, four hundred forty-one".