1420204320 has 192 divisors, whose sum is σ = 4988148480. Its totient is φ = 377395200.

The previous prime is 1420204309. The next prime is 1420204321. The reversal of 1420204320 is 234020241.

1420204320 is a `hidden beast` number, since 142 + 0 + 204 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1420204293 and 1420204302.

It is not an unprimeable number, because it can be changed into a prime (1420204321) 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, 2250405 + ... + 2251035.

It is an arithmetic number, because the mean of its divisors is an integer number (25979940).

Almost surely, 2^1420204320 is an apocalyptic number.

1420204320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420204320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2494074240).

1420204320 is an abundant number, since it is smaller than the sum of its proper divisors (3567944160).

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

1420204320 is a wasteful number, since it uses less digits than its factorization.

1420204320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1420204320 is about 37685.5983102299. The cubic root of 1420204320 is about 1124.0447713747.

Adding to 1420204320 its reverse (234020241), we get a palindrome (1654224561).

The spelling of 1420204320 in words is "one billion, four hundred twenty million, two hundred four thousand, three hundred twenty".