1049640 has 32 divisors (see below), whose sum is σ = 3149280. Its totient is φ = 279872.

The previous prime is 1049639. The next prime is 1049663. The reversal of 1049640 is 469401.

It is a super-2 number, since 2×1049640² = 2203488259200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1049640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4254 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (98415).

2^1049640 is an apocalyptic number.

1049640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049640 is an abundant number, since it is smaller than the sum of its proper divisors (2099640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1049640 is a wasteful number, since it uses less digits than its factorization.

1049640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8761 (or 8757 counting only the distinct ones).

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

The square root of 1049640 is about 1024.5193995235. The cubic root of 1049640 is about 101.6280183953.

The spelling of 1049640 in words is "one million, forty-nine thousand, six hundred forty".