1304940940 has 24 divisors (see below), whose sum is σ = 2773396080. Its totient is φ = 515686848.

The previous prime is 1304940899. The next prime is 1304940983. The reversal of 1304940940 is 490494031.

It is a junction number, because it is equal to n+sod(n) for n = 1304940896 and 1304940905.

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, 391395 + ... + 394714.

It is an arithmetic number, because the mean of its divisors is an integer number (115558170).

Almost surely, 2^1304940940 is an apocalyptic number.

1304940940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304940940 is an abundant number, since it is smaller than the sum of its proper divisors (1468455140).

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

1304940940 is a wasteful number, since it uses less digits than its factorization.

1304940940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786201 (or 786199 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1304940940 is about 36123.9662827879. The cubic root of 1304940940 is about 1092.7738290438.

The spelling of 1304940940 in words is "one billion, three hundred four million, nine hundred forty thousand, nine hundred forty".