1440030 has 32 divisors (see below), whose sum is σ = 3608064. Its totient is φ = 367136.

The previous prime is 1440017. The next prime is 1440037. The reversal of 1440030 is 300441.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1439988 and 1440015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (112752).

2^1440030 is an apocalyptic number.

1440030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1440030 is an abundant number, since it is smaller than the sum of its proper divisors (2168034).

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

1440030 is a wasteful number, since it uses less digits than its factorization.

1440030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1440030 is about 1200.0124999349. The cubic root of 1440030 is about 112.9251076570.

Adding to 1440030 its reverse (300441), we get a palindrome (1740471).

The spelling of 1440030 in words is "one million, four hundred forty thousand, thirty".