1423520 has 96 divisors (see below), whose sum is σ = 4064256. Its totient is φ = 460800.

The previous prime is 1423511. The next prime is 1423547. The reversal of 1423520 is 253241.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34700 + ... + 34740.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2^1423520 is an apocalyptic number.

1423520 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 1423520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032128).

1423520 is an abundant number, since it is smaller than the sum of its proper divisors (2640736).

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

1423520 is a wasteful number, since it uses less digits than its factorization.

1423520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1423520 is about 1193.1135738059. The cubic root of 1423520 is about 112.4918841882.

Adding to 1423520 its reverse (253241), we get a palindrome (1676761).

The spelling of 1423520 in words is "one million, four hundred twenty-three thousand, five hundred twenty".