1303940 has 24 divisors (see below), whose sum is σ = 2987712. Its totient is φ = 474080.

The previous prime is 1303933. The next prime is 1303961. The reversal of 1303940 is 493031.

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

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, 2744 + ... + 3183.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2^1303940 is an apocalyptic number.

1303940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303940 is an abundant number, since it is smaller than the sum of its proper divisors (1683772).

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

1303940 is a wasteful number, since it uses less digits than its factorization.

1303940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947 (or 5945 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1303940 is about 1141.9019222333. The cubic root of 1303940 is about 109.2494357694.

Adding to 1303940 its reverse (493031), we get a palindrome (1796971).

The spelling of 1303940 in words is "one million, three hundred three thousand, nine hundred forty".