1304940 has 96 divisors (see below), whose sum is σ = 4515840. Its totient is φ = 274176.

The previous prime is 1304929. The next prime is 1304957. The reversal of 1304940 is 494031.

1304940 = T₁₆₇ + T₁₆₈ + ... + T₂₃₁.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5341 + ... + 5579.

It is an arithmetic number, because the mean of its divisors is an integer number (47040).

2^1304940 is an apocalyptic number.

1304940 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 1304940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2257920).

1304940 is an abundant number, since it is smaller than the sum of its proper divisors (3210900).

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

1304940 is a wasteful number, since it uses less digits than its factorization.

1304940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1304940 is about 1142.3397042912. The cubic root of 1304940 is about 109.2773566654.

Adding to 1304940 its reverse (494031), we get a palindrome (1798971).

The spelling of 1304940 in words is "one million, three hundred four thousand, nine hundred forty".