80293278 has 64 divisors (see below), whose sum is σ = 192810240. Its totient is φ = 22021632.

The previous prime is 80293267. The next prime is 80293303. The reversal of 80293278 is 87239208.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23601 + ... + 26787.

It is an arithmetic number, because the mean of its divisors is an integer number (3012660).

Almost surely, 2^80293278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80293278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96405120).

80293278 is an abundant number, since it is smaller than the sum of its proper divisors (112516962).

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

80293278 is a wasteful number, since it uses less digits than its factorization.

80293278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 80293278 is about 8960.6516504103. The cubic root of 80293278 is about 431.4128361333.

The spelling of 80293278 in words is "eighty million, two hundred ninety-three thousand, two hundred seventy-eight".