76021320 has 64 divisors (see below), whose sum is σ = 228680640. Its totient is φ = 20217600.

The previous prime is 76021307. The next prime is 76021321. The reversal of 76021320 is 2312067.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (76021321) 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, 64335 + ... + 65505.

It is an arithmetic number, because the mean of its divisors is an integer number (3573135).

Almost surely, 2^76021320 is an apocalyptic number.

It is an amenable number.

76021320 is an abundant number, since it is smaller than the sum of its proper divisors (152659320).

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

76021320 is a wasteful number, since it uses less digits than its factorization.

76021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 76021320 is about 8719.0205871990. The cubic root of 76021320 is about 423.6219633885.

Adding to 76021320 its reverse (2312067), we get a palindrome (78333387).

The spelling of 76021320 in words is "seventy-six million, twenty-one thousand, three hundred twenty".