1424520 has 64 divisors (see below), whose sum is σ = 4752000. Its totient is φ = 379584.

The previous prime is 1424519. The next prime is 1424531. The reversal of 1424520 is 254241.

1424520 is a `hidden beast` number, since 142 + 4 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1424493 and 1424502.

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, 421 + ... + 1739.

It is an arithmetic number, because the mean of its divisors is an integer number (74250).

2^1424520 is an apocalyptic number.

1424520 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 1424520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376000).

1424520 is an abundant number, since it is smaller than the sum of its proper divisors (3327480).

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

1424520 is a wasteful number, since it uses less digits than its factorization.

1424520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1424520 is about 1193.5325718220. The cubic root of 1424520 is about 112.5182192715.

Adding to 1424520 its reverse (254241), we get a palindrome (1678761).

The spelling of 1424520 in words is "one million, four hundred twenty-four thousand, five hundred twenty".