421150439 has 4 divisors (see below), whose sum is σ = 422323920. Its totient is φ = 419976960.

The previous prime is 421150427. The next prime is 421150481. The reversal of 421150439 is 934051124.

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

It is a cyclic number.

It is not a de Polignac number, because 421150439 - 2⁴ = 421150423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421150739) 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 3 ways as a sum of consecutive naturals, for example, 586202 + ... + 586919.

It is an arithmetic number, because the mean of its divisors is an integer number (105580980).

Almost surely, 2^421150439 is an apocalyptic number.

421150439 is a deficient number, since it is larger than the sum of its proper divisors (1173481).

421150439 is a wasteful number, since it uses less digits than its factorization.

421150439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173480.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 421150439 is about 20521.9501753610. The cubic root of 421150439 is about 749.5703844728.

The spelling of 421150439 in words is "four hundred twenty-one million, one hundred fifty thousand, four hundred thirty-nine".