1343712720 has 160 divisors (see below), whose sum is σ = 4889472768. Its totient is φ = 298819584.

The previous prime is 1343712707. The next prime is 1343712743. The reversal of 1343712720 is 272173431.

1343712720 = T₈₅₀₄ + T₈₅₀₅ + ... + T₈₅₄₀.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 51352 + ... + 72968.

Almost surely, 2^1343712720 is an apocalyptic number.

1343712720 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 1343712720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2444736384).

1343712720 is an abundant number, since it is smaller than the sum of its proper divisors (3545760048).

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

1343712720 is a wasteful number, since it uses less digits than its factorization.

1343712720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21677 (or 21671 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 1343712720 is about 36656.6872480316. The cubic root of 1343712720 is about 1103.4910356104.

The spelling of 1343712720 in words is "one billion, three hundred forty-three million, seven hundred twelve thousand, seven hundred twenty".