80941040 has 20 divisors (see below), whose sum is σ = 188188104. Its totient is φ = 32376384.

The previous prime is 80940949. The next prime is 80941043. The reversal of 80941040 is 4014908.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80941043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505802 + ... + 505961.

Almost surely, 2^80941040 is an apocalyptic number.

80941040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80941040 is an abundant number, since it is smaller than the sum of its proper divisors (107247064).

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

80941040 is a wasteful number, since it uses less digits than its factorization.

80941040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011776 (or 1011770 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 80941040 is about 8996.7238481572. The cubic root of 80941040 is about 432.5698640856.

Adding to 80941040 its reverse (4014908), we get a palindrome (84955948).

The spelling of 80941040 in words is "eighty million, nine hundred forty-one thousand, forty".