2400489 has 32 divisors (see below), whose sum is σ = 4381440. Its totient is φ = 1264896.

The previous prime is 2400481. The next prime is 2400511. The reversal of 2400489 is 9840042.

It is not a de Polignac number, because 2400489 - 2³ = 2400481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

2400489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2400481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1969 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (136920).

2^2400489 is an apocalyptic number.

It is an amenable number.

2400489 is a deficient number, since it is larger than the sum of its proper divisors (1980951).

2400489 is a wasteful number, since it uses less digits than its factorization.

2400489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2400489 is about 1549.3511545160. The cubic root of 2400489 is about 133.8956825298.

The spelling of 2400489 in words is "two million, four hundred thousand, four hundred eighty-nine".