420413444 has 48 divisors (see below), whose sum is σ = 833312256. Its totient is φ = 183859200.

The previous prime is 420413443. The next prime is 420413447. The reversal of 420413444 is 444314024.

It is a happy number.

It is a super-2 number, since 2×420413444² = 353494927791882272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420413443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262454 + ... + 264050.

It is an arithmetic number, because the mean of its divisors is an integer number (17360672).

Almost surely, 2^420413444 is an apocalyptic number.

420413444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420413444 is a deficient number, since it is larger than the sum of its proper divisors (412898812).

420413444 is a wasteful number, since it uses less digits than its factorization.

420413444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 420413444 is about 20503.9860514974. The cubic root of 420413444 is about 749.1328906222.

Adding to 420413444 its reverse (444314024), we get a palindrome (864727468).

The spelling of 420413444 in words is "four hundred twenty million, four hundred thirteen thousand, four hundred forty-four".