420004244 has 96 divisors (see below), whose sum is σ = 894136320. Its totient is φ = 170380800.

The previous prime is 420004241. The next prime is 420004301. The reversal of 420004244 is 442400024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420004241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1367939 + ... + 1368245.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^420004244 is an apocalyptic number.

420004244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420004244 is an abundant number, since it is smaller than the sum of its proper divisors (474132076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420004244 is a wasteful number, since it uses less digits than its factorization.

420004244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 420004244 is about 20494.0050746554. The cubic root of 420004244 is about 748.8897611558.

Adding to 420004244 its reverse (442400024), we get a palindrome (862404268).

The spelling of 420004244 in words is "four hundred twenty million, four thousand, two hundred forty-four".