76650420 has 192 divisors, whose sum is σ = 274046976. Its totient is φ = 15544320.

The previous prime is 76650419. The next prime is 76650463. The reversal of 76650420 is 2405667.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 216964 + ... + 217316.

It is an arithmetic number, because the mean of its divisors is an integer number (1427328).

Almost surely, 2^76650420 is an apocalyptic number.

76650420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76650420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137023488).

76650420 is an abundant number, since it is smaller than the sum of its proper divisors (197396556).

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

76650420 is a wasteful number, since it uses less digits than its factorization.

76650420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 76650420 is about 8755.0225585089. The cubic root of 76650420 is about 424.7872891739.

The spelling of 76650420 in words is "seventy-six million, six hundred fifty thousand, four hundred twenty".