80424900 has 90 divisors (see below), whose sum is σ = 260732010. Its totient is φ = 21444480.

The previous prime is 80424899. The next prime is 80424913. The reversal of 80424900 is 942408.

It can be written as a sum of positive squares in 3 ways, for example, as 715716 + 79709184 = 846^2 + 8928^2 .

It is a tau number, because it is divible by the number of its divisors (90).

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

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3136 + ... + 13064.

Almost surely, 2^80424900 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 80424900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130366005).

80424900 is an abundant number, since it is smaller than the sum of its proper divisors (180307110).

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

80424900 is a wasteful number, since it uses less digits than its factorization.

80424900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9955 (or 9939 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 80424900 is about 8967.9930865272. The cubic root of 80424900 is about 431.6484408326.

The spelling of 80424900 in words is "eighty million, four hundred twenty-four thousand, nine hundred".