80292240 has 240 divisors, whose sum is σ = 313372800. Its totient is φ = 18044928.

The previous prime is 80292193. The next prime is 80292259. The reversal of 80292240 is 4229208.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 448471 + ... + 448649.

It is an arithmetic number, because the mean of its divisors is an integer number (1305720).

Almost surely, 2^80292240 is an apocalyptic number.

80292240 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 80292240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156686400).

80292240 is an abundant number, since it is smaller than the sum of its proper divisors (233080560).

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

80292240 is a wasteful number, since it uses less digits than its factorization.

80292240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 285 counting only the distinct ones).

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

The square root of 80292240 is about 8960.5937303284. The cubic root of 80292240 is about 431.4109770800.

The spelling of 80292240 in words is "eighty million, two hundred ninety-two thousand, two hundred forty".