1043437640 has 64 divisors (see below), whose sum is σ = 2687506560. Its totient is φ = 357166080.

The previous prime is 1043437631. The next prime is 1043437643. The reversal of 1043437640 is 467343401.

It is a junction number, because it is equal to n+sod(n) for n = 1043437597 and 1043437606.

It is not an unprimeable number, because it can be changed into a prime (1043437643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190784 + ... + 196176.

It is an arithmetic number, because the mean of its divisors is an integer number (41992290).

Almost surely, 2^1043437640 is an apocalyptic number.

1043437640 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 1043437640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1343753280).

1043437640 is an abundant number, since it is smaller than the sum of its proper divisors (1644068920).

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

1043437640 is a wasteful number, since it uses less digits than its factorization.

1043437640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6102 (or 6098 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 1043437640 is about 32302.2853680665. The cubic root of 1043437640 is about 1014.2744829431.

The spelling of 1043437640 in words is "one billion, forty-three million, four hundred thirty-seven thousand, six hundred forty".