1248720 has 120 divisors (see below), whose sum is σ = 4353888. Its totient is φ = 295680.

The previous prime is 1248703. The next prime is 1248721. The reversal of 1248720 is 278421.

1248720 = T₁₈₅ + T₁₈₆ + ... + T₂₃₉.

It is a tau number, because it is divible by the number of its divisors (120).

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 (1248721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29019 + ... + 29061.

2^1248720 is an apocalyptic number.

1248720 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 1248720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2176944).

1248720 is an abundant number, since it is smaller than the sum of its proper divisors (3105168).

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

1248720 is a wasteful number, since it uses less digits than its factorization.

1248720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 1248720 is about 1117.4614087296. The cubic root of 1248720 is about 107.6849529252.

Subtracting from 1248720 its reverse (278421), we obtain a cube (970299 = 99³).

The spelling of 1248720 in words is "one million, two hundred forty-eight thousand, seven hundred twenty".