76822840 has 16 divisors (see below), whose sum is σ = 172851480. Its totient is φ = 30729120.

The previous prime is 76822819. The next prime is 76822849. The reversal of 76822840 is 4822867.

It is a self number, because there is not a number n which added to its sum of digits gives 76822840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76822849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960246 + ... + 960325.

Almost surely, 2^76822840 is an apocalyptic number.

It is an amenable number.

76822840 is an abundant number, since it is smaller than the sum of its proper divisors (96028640).

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

76822840 is a wasteful number, since it uses less digits than its factorization.

76822840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920582 (or 1920578 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 76822840 is about 8764.8639464626. The cubic root of 76822840 is about 425.1055608607.

It can be divided in two parts, 76822 and 840, that multiplied together give a triangular number (64530480 = T₁₁₃₆₀).

The spelling of 76822840 in words is "seventy-six million, eight hundred twenty-two thousand, eight hundred forty".