1520456 has 32 divisors (see below), whose sum is σ = 3432000. Its totient is φ = 616896.

The previous prime is 1520447. The next prime is 1520473. The reversal of 1520456 is 6540251.

1520456 is a modest number, since divided by 456 gives 152 as remainder.

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, 350 + ... + 1778.

It is an arithmetic number, because the mean of its divisors is an integer number (107250).

2^1520456 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 1520456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716000).

1520456 is an abundant number, since it is smaller than the sum of its proper divisors (1911544).

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

1520456 is a wasteful number, since it uses less digits than its factorization.

1520456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1520456 is about 1233.0677191460. The cubic root of 1520456 is about 114.9894382235.

The spelling of 1520456 in words is "one million, five hundred twenty thousand, four hundred fifty-six".