1049540 has 24 divisors (see below), whose sum is σ = 2230872. Its totient is φ = 414720.

The previous prime is 1049537. The next prime is 1049549. The reversal of 1049540 is 459401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61504 + 988036 = 248^2 + 994^2 .

It is a super-2 number, since 2×1049540² = 2203068423200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1049549) 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, 1670 + ... + 2210.

It is an arithmetic number, because the mean of its divisors is an integer number (92953).

2^1049540 is an apocalyptic number.

1049540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049540 is an abundant number, since it is smaller than the sum of its proper divisors (1181332).

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

1049540 is a wasteful number, since it uses less digits than its factorization.

1049540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1049540 is about 1024.4705949904. The cubic root of 1049540 is about 101.6247909000.

The spelling of 1049540 in words is "one million, forty-nine thousand, five hundred forty".