1043100540 has 72 divisors (see below), whose sum is σ = 3171102480. Its totient is φ = 277542144.

The previous prime is 1043100533. The next prime is 1043100581. The reversal of 1043100540 is 450013401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77856 + ... + 90264.

It is an arithmetic number, because the mean of its divisors is an integer number (44043090).

Almost surely, 2^1043100540 is an apocalyptic number.

1043100540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043100540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585551240).

1043100540 is an abundant number, since it is smaller than the sum of its proper divisors (2128001940).

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

1043100540 is a wasteful number, since it uses less digits than its factorization.

1043100540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12891 (or 12886 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1043100540 is about 32297.0670495016. The cubic root of 1043100540 is about 1014.1652450606.

Adding to 1043100540 its reverse (450013401), we get a palindrome (1493113941).

The spelling of 1043100540 in words is "one billion, forty-three million, one hundred thousand, five hundred forty".