1506240 has 84 divisors (see below), whose sum is σ = 5190744. Its totient is φ = 400896.

The previous prime is 1506229. The next prime is 1506257. The reversal of 1506240 is 426051.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2619 + ... + 3141.

2^1506240 is an apocalyptic number.

1506240 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 1506240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2595372).

1506240 is an abundant number, since it is smaller than the sum of its proper divisors (3684504).

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

1506240 is a wasteful number, since it uses less digits than its factorization.

1506240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1506240 is about 1227.2896968524. The cubic root of 1506240 is about 114.6299383602.

The spelling of 1506240 in words is "one million, five hundred six thousand, two hundred forty".