1430720 has 56 divisors (see below), whose sum is σ = 3621024. Its totient is φ = 536576.

The previous prime is 1430717. The next prime is 1430729. The reversal of 1430720 is 270341.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1430729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5309 + ... + 5571.

2^1430720 is an apocalyptic number.

1430720 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 1430720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810512).

1430720 is an abundant number, since it is smaller than the sum of its proper divisors (2190304).

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

1430720 is a wasteful number, since it uses less digits than its factorization.

1430720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1430720 is about 1196.1270835492. The cubic root of 1430720 is about 112.6812223218.

The spelling of 1430720 in words is "one million, four hundred thirty thousand, seven hundred twenty".