1309704948 has 72 divisors (see below), whose sum is σ = 3345503616. Its totient is φ = 432000000.

The previous prime is 1309704923. The next prime is 1309704967. The reversal of 1309704948 is 8494079031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1743573 + ... + 1744323.

It is an arithmetic number, because the mean of its divisors is an integer number (46465328).

Almost surely, 2^1309704948 is an apocalyptic number.

1309704948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1309704948 is an abundant number, since it is smaller than the sum of its proper divisors (2035798668).

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

1309704948 is a wasteful number, since it uses less digits than its factorization.

1309704948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1309704948 is about 36189.8459239605. The cubic root of 1309704948 is about 1094.1020272994.

The spelling of 1309704948 in words is "one billion, three hundred nine million, seven hundred four thousand, nine hundred forty-eight".