1043949312 has 216 divisors, whose sum is σ = 3512818400. Its totient is φ = 298045440.

The previous prime is 1043949299. The next prime is 1043949341. The reversal of 1043949312 is 2139493401.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 789612 + ... + 790932.

Almost surely, 2^1043949312 is an apocalyptic number.

1043949312 is a gapful number since it is divisible by the number (12) 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 1043949312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756409200).

1043949312 is an abundant number, since it is smaller than the sum of its proper divisors (2468869088).

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

1043949312 is an equidigital number, since it uses as much as digits as its factorization.

1043949312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1043949312 is about 32310.2044561776. The cubic root of 1043949312 is about 1014.4402462579.

The spelling of 1043949312 in words is "one billion, forty-three million, nine hundred forty-nine thousand, three hundred twelve".