421201039 has 16 divisors (see below), whose sum is σ = 499530240. Its totient is φ = 347649120.

The previous prime is 421201019. The next prime is 421201057. The reversal of 421201039 is 930102124.

It is not a de Polignac number, because 421201039 - 2¹³ = 421192847 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 (421201009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11517 + ... + 31225.

It is an arithmetic number, because the mean of its divisors is an integer number (31220640).

Almost surely, 2^421201039 is an apocalyptic number.

421201039 is a deficient number, since it is larger than the sum of its proper divisors (78329201).

421201039 is a wasteful number, since it uses less digits than its factorization.

421201039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19830.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 421201039 is about 20523.1829646378. The cubic root of 421201039 is about 749.6004028377.

The spelling of 421201039 in words is "four hundred twenty-one million, two hundred one thousand, thirty-nine".