2489758 has 4 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 1244878.

The previous prime is 2489749. The next prime is 2489759. The reversal of 2489758 is 8579842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8579842 = 2 ⋅4289921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622438 + ... + 622441.

It is an arithmetic number, because the mean of its divisors is an integer number (933660).

2^2489758 is an apocalyptic number.

2489758 is a deficient number, since it is larger than the sum of its proper divisors (1244882).

2489758 is a wasteful number, since it uses less digits than its factorization.

2489758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244881.

The product of its digits is 161280, while the sum is 43.

The square root of 2489758 is about 1577.8967013084. The cubic root of 2489758 is about 135.5352867164.

The spelling of 2489758 in words is "two million, four hundred eighty-nine thousand, seven hundred fifty-eight".