1330403420 has 24 divisors (see below), whose sum is σ = 2890188000. Its totient is φ = 513810752.

The previous prime is 1330403401. The next prime is 1330403423. The reversal of 1330403420 is 243040331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1330403392 and 1330403401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330403423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146320 + ... + 1147479.

It is an arithmetic number, because the mean of its divisors is an integer number (120424500).

Almost surely, 2^1330403420 is an apocalyptic number.

1330403420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330403420 is an abundant number, since it is smaller than the sum of its proper divisors (1559784580).

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

1330403420 is a wasteful number, since it uses less digits than its factorization.

1330403420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293837 (or 2293835 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1330403420 is about 36474.6956121638. The cubic root of 1330403420 is about 1099.8356283319.

Adding to 1330403420 its reverse (243040331), we get a palindrome (1573443751).

The spelling of 1330403420 in words is "one billion, three hundred thirty million, four hundred three thousand, four hundred twenty".