2451489 has 4 divisors (see below), whose sum is σ = 3268656. Its totient is φ = 1634324.

The previous prime is 2451487. The next prime is 2451499. The reversal of 2451489 is 9841542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2451489 - 2¹ = 2451487 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2451487) 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, 408579 + ... + 408584.

It is an arithmetic number, because the mean of its divisors is an integer number (817164).

2^2451489 is an apocalyptic number.

It is an amenable number.

2451489 is a deficient number, since it is larger than the sum of its proper divisors (817167).

2451489 is an equidigital number, since it uses as much as digits as its factorization.

2451489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817166.

The product of its digits is 11520, while the sum is 33.

The square root of 2451489 is about 1565.7231556057. The cubic root of 2451489 is about 134.8372799413.

The spelling of 2451489 in words is "two million, four hundred fifty-one thousand, four hundred eighty-nine".