1303340420 has 24 divisors (see below), whose sum is σ = 2771664000. Its totient is φ = 514736352.

The previous prime is 1303340329. The next prime is 1303340483. The reversal of 1303340420 is 240433031.

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 = 1303340392 and 1303340401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410870 + ... + 414029.

It is an arithmetic number, because the mean of its divisors is an integer number (115486000).

Almost surely, 2^1303340420 is an apocalyptic number.

1303340420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303340420 is an abundant number, since it is smaller than the sum of its proper divisors (1468323580).

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

1303340420 is a wasteful number, since it uses less digits than its factorization.

1303340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824987 (or 824985 counting only the distinct ones).

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

The square root of 1303340420 is about 36101.8063259998. The cubic root of 1303340420 is about 1092.3268811247.

Adding to 1303340420 its reverse (240433031), we get a palindrome (1543773451).

The spelling of 1303340420 in words is "one billion, three hundred three million, three hundred forty thousand, four hundred twenty".