1442520 has 48 divisors (see below), whose sum is σ = 4689360. Its totient is φ = 384576.

The previous prime is 1442513. The next prime is 1442527. The reversal of 1442520 is 252441.

1442520 is a `hidden beast` number, since 144 + 2 + 520 = 666.

It is an interprime number because it is at equal distance from previous prime (1442513) and next prime (1442527).

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 = 1442493 and 1442502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1644 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (97695).

2^1442520 is an apocalyptic number.

1442520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442520 is an abundant number, since it is smaller than the sum of its proper divisors (3246840).

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

1442520 is a wasteful number, since it uses less digits than its factorization.

1442520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024 (or 4017 counting only the distinct ones).

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

The square root of 1442520 is about 1201.0495410265. The cubic root of 1442520 is about 112.9901575994.

Adding to 1442520 its reverse (252441), we get a palindrome (1694961).

The spelling of 1442520 in words is "one million, four hundred forty-two thousand, five hundred twenty".