80033440 has 24 divisors (see below), whose sum is σ = 189079380. Its totient is φ = 32013312.

The previous prime is 80033423. The next prime is 80033461. The reversal of 80033440 is 4433008.

It can be written as a sum of positive squares in 2 ways, for example, as 78216336 + 1817104 = 8844^2 + 1348^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249945 + ... + 250264.

Almost surely, 2^80033440 is an apocalyptic number.

80033440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80033440 is an abundant number, since it is smaller than the sum of its proper divisors (109045940).

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

80033440 is a wasteful number, since it uses less digits than its factorization.

80033440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500224 (or 500216 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 80033440 is about 8946.1410675218. The cubic root of 80033440 is about 430.9469665565.

Adding to 80033440 its reverse (4433008), we get a palindrome (84466448).

The spelling of 80033440 in words is "eighty million, thirty-three thousand, four hundred forty".