2649451 has 4 divisors (see below), whose sum is σ = 3027952. Its totient is φ = 2270952.

The previous prime is 2649431. The next prime is 2649473. The reversal of 2649451 is 1549462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2649451 - 2⁷ = 2649323 is a prime.

It is a Duffinian number.

2649451 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2649421) 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, 189240 + ... + 189253.

It is an arithmetic number, because the mean of its divisors is an integer number (756988).

2^2649451 is an apocalyptic number.

2649451 is a deficient number, since it is larger than the sum of its proper divisors (378501).

2649451 is an equidigital number, since it uses as much as digits as its factorization.

2649451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378500.

The product of its digits is 8640, while the sum is 31.

The square root of 2649451 is about 1627.7134268660. The cubic root of 2649451 is about 138.3731934617.

The spelling of 2649451 in words is "two million, six hundred forty-nine thousand, four hundred fifty-one".