1349720 has 32 divisors (see below), whose sum is σ = 3114720. Its totient is φ = 526080.

The previous prime is 1349713. The next prime is 1349737. The reversal of 1349720 is 279431.

It is a self number, because there is not a number n which added to its sum of digits gives 1349720.

It is a congruent number.

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, 1229 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (97335).

2^1349720 is an apocalyptic number.

1349720 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 1349720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557360).

1349720 is an abundant number, since it is smaller than the sum of its proper divisors (1765000).

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

1349720 is a wasteful number, since it uses less digits than its factorization.

1349720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1349720 is about 1161.7745047986. The cubic root of 1349720 is about 110.5133034767.

The spelling of 1349720 in words is "one million, three hundred forty-nine thousand, seven hundred twenty".