1250720 has 24 divisors (see below), whose sum is σ = 2955204. Its totient is φ = 500224.

The previous prime is 1250701. The next prime is 1250737. The reversal of 1250720 is 270521.

It can be written as a sum of positive squares in 2 ways, for example, as 1024144 + 226576 = 1012^2 + 476^2 .

It is a super-4 number, since 4×1250720⁴ (a number of 25 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3749 + ... + 4068.

2^1250720 is an apocalyptic number.

1250720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250720 is an abundant number, since it is smaller than the sum of its proper divisors (1704484).

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

1250720 is an equidigital number, since it uses as much as digits as its factorization.

1250720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832 (or 7824 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1250720 is about 1118.3559361849. The cubic root of 1250720 is about 107.7424131048.

The spelling of 1250720 in words is "one million, two hundred fifty thousand, seven hundred twenty".