1391712 has 96 divisors (see below), whose sum is σ = 4435200. Its totient is φ = 373248.

The previous prime is 1391701. The next prime is 1391713. The reversal of 1391712 is 2171931.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12714 + ... + 12822.

It is an arithmetic number, because the mean of its divisors is an integer number (46200).

2^1391712 is an apocalyptic number.

1391712 is a gapful number since it is divisible by the number (12) 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 1391712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2217600).

1391712 is an abundant number, since it is smaller than the sum of its proper divisors (3043488).

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

1391712 is a wasteful number, since it uses less digits than its factorization.

1391712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 140 counting only the distinct ones).

The product of its digits is 378, while the sum is 24.

The square root of 1391712 is about 1179.7084385559. The cubic root of 1391712 is about 111.6477025294.

The spelling of 1391712 in words is "one million, three hundred ninety-one thousand, seven hundred twelve".