1485440 has 64 divisors (see below), whose sum is σ = 3892320. Its totient is φ = 537600.

The previous prime is 1485433. The next prime is 1485461. The reversal of 1485440 is 445841.

It is a tau number, because it is divible by the number of its divisors (64).

It is a zygodrome in base 4.

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, 6935 + ... + 7145.

2^1485440 is an apocalyptic number.

1485440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1485440 is the 704-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1485440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1946160).

1485440 is an abundant number, since it is smaller than the sum of its proper divisors (2406880).

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

1485440 is a wasteful number, since it uses less digits than its factorization.

1485440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1485440 is about 1218.7862815112. The cubic root of 1485440 is about 114.0998407174.

The spelling of 1485440 in words is "one million, four hundred eighty-five thousand, four hundred forty".