421202444 has 24 divisors (see below), whose sum is σ = 794399760. Its totient is φ = 194255424.

The previous prime is 421202371. The next prime is 421202447. The reversal of 421202444 is 444202124.

It is a super-2 number, since 2×421202444² = 354822997663146272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421202447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 100862 + ... + 104954.

It is an arithmetic number, because the mean of its divisors is an integer number (33099990).

Almost surely, 2^421202444 is an apocalyptic number.

It is an amenable number.

421202444 is a deficient number, since it is larger than the sum of its proper divisors (373197316).

421202444 is a wasteful number, since it uses less digits than its factorization.

421202444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089 (or 6087 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 421202444 is about 20523.2171941925. The cubic root of 421202444 is about 749.6012363172.

Adding to 421202444 its reverse (444202124), we get a palindrome (865404568).

The spelling of 421202444 in words is "four hundred twenty-one million, two hundred two thousand, four hundred forty-four".