1043219440 has 80 divisors (see below), whose sum is σ = 2571621120. Its totient is φ = 392878080.

The previous prime is 1043219393. The next prime is 1043219449. The reversal of 1043219440 is 449123401.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1043219399 and 1043219408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043219449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86076 + ... + 97444.

It is an arithmetic number, because the mean of its divisors is an integer number (32145264).

Almost surely, 2^1043219440 is an apocalyptic number.

1043219440 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 1043219440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285810560).

1043219440 is an abundant number, since it is smaller than the sum of its proper divisors (1528401680).

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

1043219440 is a wasteful number, since it uses less digits than its factorization.

1043219440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450 (or 11444 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1043219440 is about 32298.9077214695. The cubic root of 1043219440 is about 1014.2037775131.

The spelling of 1043219440 in words is "one billion, forty-three million, two hundred nineteen thousand, four hundred forty".