1348904720 has 20 divisors (see below), whose sum is σ = 3136203660. Its totient is φ = 539561856.

The previous prime is 1348904699. The next prime is 1348904723. The reversal of 1348904720 is 274098431.

It can be written as a sum of positive squares in 2 ways, for example, as 140090896 + 1208813824 = 11836^2 + 34768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1348904723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8430575 + ... + 8430734.

It is an arithmetic number, because the mean of its divisors is an integer number (156810183).

Almost surely, 2^1348904720 is an apocalyptic number.

1348904720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1348904720 is an abundant number, since it is smaller than the sum of its proper divisors (1787298940).

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

1348904720 is a wasteful number, since it uses less digits than its factorization.

1348904720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16861322 (or 16861316 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1348904720 is about 36727.4382444515. The cubic root of 1348904720 is about 1104.9104764256.

The spelling of 1348904720 in words is "one billion, three hundred forty-eight million, nine hundred four thousand, seven hundred twenty".