2649406 has 8 divisors (see below), whose sum is σ = 3981024. Its totient is φ = 1322400.

The previous prime is 2649403. The next prime is 2649421. The reversal of 2649406 is 6049462.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649403) 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, 1606 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (497628).

2^2649406 is an apocalyptic number.

2649406 is a deficient number, since it is larger than the sum of its proper divisors (1331618).

2649406 is a wasteful number, since it uses less digits than its factorization.

2649406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2649406 is about 1627.6996037353. The cubic root of 2649406 is about 138.3724100505.

The spelling of 2649406 in words is "two million, six hundred forty-nine thousand, four hundred six".