77328340 has 24 divisors (see below), whose sum is σ = 162570240. Its totient is φ = 30896928.

The previous prime is 77328313. The next prime is 77328379. The reversal of 77328340 is 4382377.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 77328296 and 77328305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24069 + ... + 27091.

It is an arithmetic number, because the mean of its divisors is an integer number (6773760).

Almost surely, 2^77328340 is an apocalyptic number.

It is an amenable number.

77328340 is an abundant number, since it is smaller than the sum of its proper divisors (85241900).

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

77328340 is a wasteful number, since it uses less digits than its factorization.

77328340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311 (or 4309 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 77328340 is about 8793.6533932149. The cubic root of 77328340 is about 426.0359319321.

The spelling of 77328340 in words is "seventy-seven million, three hundred twenty-eight thousand, three hundred forty".