1432320 has 72 divisors (see below), whose sum is σ = 4586736. Its totient is φ = 380928.

The previous prime is 1432313. The next prime is 1432351. The reversal of 1432320 is 232341.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1432320.

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, 3654 + ... + 4026.

2^1432320 is an apocalyptic number.

1432320 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 1432320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2293368).

1432320 is an abundant number, since it is smaller than the sum of its proper divisors (3154416).

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

1432320 is an equidigital number, since it uses as much as digits as its factorization.

1432320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1432320 is about 1196.7957219175. The cubic root of 1432320 is about 112.7232111550.

Adding to 1432320 its reverse (232341), we get a palindrome (1664661).

The spelling of 1432320 in words is "one million, four hundred thirty-two thousand, three hundred twenty".