421301242 has 16 divisors (see below), whose sum is σ = 671253480. Its totient is φ = 197628928.

The previous prime is 421301239. The next prime is 421301261. The reversal of 421301242 is 242103124.

It can be written as a sum of positive squares in 4 ways, for example, as 283215241 + 138086001 = 16829^2 + 11751^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8767 + ... + 30322.

Almost surely, 2^421301242 is an apocalyptic number.

421301242 is a deficient number, since it is larger than the sum of its proper divisors (249952238).

421301242 is a wasteful number, since it uses less digits than its factorization.

421301242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39425.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 421301242 is about 20525.6240343625. The cubic root of 421301242 is about 749.6598410051.

Adding to 421301242 its reverse (242103124), we get a palindrome (663404366).

The spelling of 421301242 in words is "four hundred twenty-one million, three hundred one thousand, two hundred forty-two".