1440620 has 12 divisors (see below), whose sum is σ = 3025344. Its totient is φ = 576240.

The previous prime is 1440619. The next prime is 1440623. The reversal of 1440620 is 260441.

It is not an unprimeable number, because it can be changed into a prime (1440623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35996 + ... + 36035.

It is an arithmetic number, because the mean of its divisors is an integer number (252112).

2^1440620 is an apocalyptic number.

1440620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440620 is an abundant number, since it is smaller than the sum of its proper divisors (1584724).

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

1440620 is a wasteful number, since it uses less digits than its factorization.

1440620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72040 (or 72038 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1440620 is about 1200.2583055326. The cubic root of 1440620 is about 112.9405278719.

The spelling of 1440620 in words is "one million, four hundred forty thousand, six hundred twenty".