80378652 has 96 divisors (see below), whose sum is σ = 213276672. Its totient is φ = 23417856.

The previous prime is 80378651. The next prime is 80378677. The reversal of 80378652 is 25687308.

It is a self number, because there is not a number n which added to its sum of digits gives 80378652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80378651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173373 + ... + 173835.

It is an arithmetic number, because the mean of its divisors is an integer number (2221632).

Almost surely, 2^80378652 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 80378652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106638336).

80378652 is an abundant number, since it is smaller than the sum of its proper divisors (132898020).

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

80378652 is a wasteful number, since it uses less digits than its factorization.

80378652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 80378652 is about 8965.4142124054. The cubic root of 80378652 is about 431.5656857620.

The spelling of 80378652 in words is "eighty million, three hundred seventy-eight thousand, six hundred fifty-two".