1530456 has 32 divisors (see below), whose sum is σ = 3917760. Its totient is φ = 497952.

The previous prime is 1530409. The next prime is 1530457. The reversal of 1530456 is 6540351.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (122430).

2^1530456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1958880).

1530456 is an abundant number, since it is smaller than the sum of its proper divisors (2387304).

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

1530456 is a wasteful number, since it uses less digits than its factorization.

1530456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1530456 is about 1237.1160010282. The cubic root of 1530456 is about 115.2409817541.

The spelling of 1530456 in words is "one million, five hundred thirty thousand, four hundred fifty-six".