80471040 has 264 divisors, whose sum is σ = 287693568. Its totient is φ = 19169280.

The previous prime is 80471033. The next prime is 80471051. The reversal of 80471040 is 4017408.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 80471040.

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, 2595825 + ... + 2595855.

Almost surely, 2^80471040 is an apocalyptic number.

80471040 is a gapful number since it is divisible by the number (80) 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 80471040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143846784).

80471040 is an abundant number, since it is smaller than the sum of its proper divisors (207222528).

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

80471040 is a wasteful number, since it uses less digits than its factorization.

80471040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 80471040 is about 8970.5651995847. The cubic root of 80471040 is about 431.7309710424.

Adding to 80471040 its reverse (4017408), we get a palindrome (84488448).

The spelling of 80471040 in words is "eighty million, four hundred seventy-one thousand, forty".