76734140 has 48 divisors (see below), whose sum is σ = 184766400. Its totient is φ = 26222592.

The previous prime is 76734139. The next prime is 76734143. The reversal of 76734140 is 4143767.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 76734097 and 76734106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76734143) 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, 53756 + ... + 55164.

It is an arithmetic number, because the mean of its divisors is an integer number (3849300).

Almost surely, 2^76734140 is an apocalyptic number.

76734140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

76734140 is an abundant number, since it is smaller than the sum of its proper divisors (108032260).

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

76734140 is a wasteful number, since it uses less digits than its factorization.

76734140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 76734140 is about 8759.8025091893. The cubic root of 76734140 is about 424.9418882483.

The spelling of 76734140 in words is "seventy-six million, seven hundred thirty-four thousand, one hundred forty".