1040649 has 8 divisors (see below), whose sum is σ = 1460640. Its totient is φ = 657216.

The previous prime is 1040629. The next prime is 1040651. The reversal of 1040649 is 9460401.

1040649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1040649 - 2⁷ = 1040521 is a prime.

1040649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1040629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9072 + ... + 9185.

It is an arithmetic number, because the mean of its divisors is an integer number (182580).

2^1040649 is an apocalyptic number.

1040649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1040649 is a deficient number, since it is larger than the sum of its proper divisors (419991).

1040649 is a wasteful number, since it uses less digits than its factorization.

1040649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18279.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1040649 is about 1020.1220515213. The cubic root of 1040649 is about 101.3370110142.

The spelling of 1040649 in words is "one million, forty thousand, six hundred forty-nine".