76840302 has 64 divisors (see below), whose sum is σ = 194918400. Its totient is φ = 19613280.

The previous prime is 76840279. The next prime is 76840303. The reversal of 76840302 is 20304867.

It is a super-2 number, since 2×76840302² = 11808864022902408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76840302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76840303) 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, 25849 + ... + 28667.

It is an arithmetic number, because the mean of its divisors is an integer number (3045600).

Almost surely, 2^76840302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76840302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97459200).

76840302 is an abundant number, since it is smaller than the sum of its proper divisors (118078098).

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

76840302 is a wasteful number, since it uses less digits than its factorization.

76840302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 76840302 is about 8765.8600262610. The cubic root of 76840302 is about 425.1377675627.

The spelling of 76840302 in words is "seventy-six million, eight hundred forty thousand, three hundred two".