421130242 has 32 divisors (see below), whose sum is σ = 695447424. Its totient is φ = 190080000.

The previous prime is 421130221. The next prime is 421130251. The reversal of 421130242 is 242031124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262242 + ... + 263842.

It is an arithmetic number, because the mean of its divisors is an integer number (21732732).

Almost surely, 2^421130242 is an apocalyptic number.

421130242 is a deficient number, since it is larger than the sum of its proper divisors (274317182).

421130242 is a wasteful number, since it uses less digits than its factorization.

421130242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834.

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

The square root of 421130242 is about 20521.4580865980. The cubic root of 421130242 is about 749.5584019652.

Adding to 421130242 its reverse (242031124), we get a palindrome (663161366).

It can be divided in two parts, 4211 and 30242, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 421130242 in words is "four hundred twenty-one million, one hundred thirty thousand, two hundred forty-two".