421441402 has 8 divisors (see below), whose sum is σ = 632438496. Its totient is φ = 210628572.

The previous prime is 421441399. The next prime is 421441403. The reversal of 421441402 is 204144124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×421441402² = 355225710639451208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421441403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40198 + ... + 49585.

It is an arithmetic number, because the mean of its divisors is an integer number (79054812).

Almost surely, 2^421441402 is an apocalyptic number.

421441402 is a deficient number, since it is larger than the sum of its proper divisors (210997094).

421441402 is a wasteful number, since it uses less digits than its factorization.

421441402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92132.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 421441402 is about 20529.0380193520. The cubic root of 421441402 is about 749.7429649577.

Adding to 421441402 its reverse (204144124), we get a palindrome (625585526).

The spelling of 421441402 in words is "four hundred twenty-one million, four hundred forty-one thousand, four hundred two".