76637340 has 144 divisors (see below), whose sum is σ = 259834848. Its totient is φ = 18849024.

The previous prime is 76637339. The next prime is 76637387. The reversal of 76637340 is 4373667.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 76637295 and 76637304.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 62574 + ... + 63786.

Almost surely, 2^76637340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76637340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129917424).

76637340 is an abundant number, since it is smaller than the sum of its proper divisors (183197508).

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

76637340 is a wasteful number, since it uses less digits than its factorization.

76637340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 76637340 is about 8754.2755268497. The cubic root of 76637340 is about 424.7631252106.

The spelling of 76637340 in words is "seventy-six million, six hundred thirty-seven thousand, three hundred forty".