76878340 has 48 divisors (see below), whose sum is σ = 201285504. Its totient is φ = 23961600.

The previous prime is 76878337. The next prime is 76878349. The reversal of 76878340 is 4387867.

It is a super-2 number, since 2×76878340² = 11820558322311200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (76878349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23421 + ... + 26500.

It is an arithmetic number, because the mean of its divisors is an integer number (4193448).

Almost surely, 2^76878340 is an apocalyptic number.

76878340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

76878340 is an abundant number, since it is smaller than the sum of its proper divisors (124407164).

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

76878340 is a wasteful number, since it uses less digits than its factorization.

76878340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49948 (or 49946 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 76878340 is about 8768.0294251331. The cubic root of 76878340 is about 425.2079075035.

The spelling of 76878340 in words is "seventy-six million, eight hundred seventy-eight thousand, three hundred forty".