80343900 has 360 divisors, whose sum is σ = 323486240. Its totient is φ = 16796160.

The previous prime is 80343871. The next prime is 80343911. The reversal of 80343900 is 934308.

80343900 = T₄₉₅ + T₄₉₆ + ... + T₈₄₄.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 737046 + ... + 737154.

Almost surely, 2^80343900 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 80343900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161743120).

80343900 is an abundant number, since it is smaller than the sum of its proper divisors (243142340).

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

80343900 is a wasteful number, since it uses less digits than its factorization.

80343900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 80343900 is about 8963.4758882924. The cubic root of 80343900 is about 431.5034804695.

The spelling of 80343900 in words is "eighty million, three hundred forty-three thousand, nine hundred".