80394240 has 96 divisors (see below), whose sum is σ = 257297040. Its totient is φ = 21430272.

The previous prime is 80394233. The next prime is 80394247. The reversal of 80394240 is 4249308.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80394233) and next prime (80394247).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 80394198 and 80394207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80394247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29412 + ... + 32028.

Almost surely, 2^80394240 is an apocalyptic number.

80394240 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 80394240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128648520).

80394240 is an abundant number, since it is smaller than the sum of its proper divisors (176902800).

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

80394240 is a wasteful number, since it uses less digits than its factorization.

80394240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647 (or 2627 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 80394240 is about 8966.2835110206. The cubic root of 80394240 is about 431.5935821039.

The spelling of 80394240 in words is "eighty million, three hundred ninety-four thousand, two hundred forty".