80372736 has 264 divisors, whose sum is σ = 268238880. Its totient is φ = 23887872.

The previous prime is 80372713. The next prime is 80372759. The reversal of 80372736 is 63727308.

It is an interprime number because it is at equal distance from previous prime (80372713) and next prime (80372759).

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

It is a self number, because there is not a number n which added to its sum of digits gives 80372736.

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, 4230135 + ... + 4230153.

Almost surely, 2^80372736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80372736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134119440).

80372736 is an abundant number, since it is smaller than the sum of its proper divisors (187866144).

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

80372736 is a wasteful number, since it uses less digits than its factorization.

80372736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 80372736 is about 8965.0842717735. The cubic root of 80372736 is about 431.5550975225. Note that the first 3 decimals are identical.

It can be divided in two parts, 80 and 372736, that added together give a triangular number (372816 = T₈₆₃).

The spelling of 80372736 in words is "eighty million, three hundred seventy-two thousand, seven hundred thirty-six".