2489405 has 8 divisors (see below), whose sum is σ = 3117312. Its totient is φ = 1904848.

The previous prime is 2489381. The next prime is 2489411. The reversal of 2489405 is 5049842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2489405 - 2⁶ = 2489341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10709 + ... + 10938.

It is an arithmetic number, because the mean of its divisors is an integer number (389664).

2^2489405 is an apocalyptic number.

It is an amenable number.

2489405 is a deficient number, since it is larger than the sum of its proper divisors (627907).

2489405 is a wasteful number, since it uses less digits than its factorization.

2489405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21675.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2489405 is about 1577.7848395773. The cubic root of 2489405 is about 135.5288809777.

The spelling of 2489405 in words is "two million, four hundred eighty-nine thousand, four hundred five".