76420530 has 64 divisors (see below), whose sum is σ = 204624000. Its totient is φ = 20295360.

The previous prime is 76420529. The next prime is 76420573. The reversal of 76420530 is 3502467.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 76420494 and 76420503.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93825 + ... + 94635.

It is an arithmetic number, because the mean of its divisors is an integer number (3197250).

Almost surely, 2^76420530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76420530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102312000).

76420530 is an abundant number, since it is smaller than the sum of its proper divisors (128203470).

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

76420530 is a wasteful number, since it uses less digits than its factorization.

76420530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 76420530 is about 8741.8836642911. The cubic root of 76420530 is about 424.3621897801.

Adding to 76420530 its reverse (3502467), we get a palindrome (79922997).

The spelling of 76420530 in words is "seventy-six million, four hundred twenty thousand, five hundred thirty".