76003220 has 24 divisors (see below), whose sum is σ = 161796264. Its totient is φ = 29984256.

The previous prime is 76003181. The next prime is 76003223. The reversal of 76003220 is 2230067.

It can be written as a sum of positive squares in 4 ways, for example, as 15225604 + 60777616 = 3902^2 + 7796^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 76003192 and 76003201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76003223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24569 + ... + 27488.

It is an arithmetic number, because the mean of its divisors is an integer number (6741511).

Almost surely, 2^76003220 is an apocalyptic number.

It is an amenable number.

76003220 is an abundant number, since it is smaller than the sum of its proper divisors (85793044).

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

76003220 is a wasteful number, since it uses less digits than its factorization.

76003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52139 (or 52137 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 76003220 is about 8717.9825647910. The cubic root of 76003220 is about 423.5883405129.

Adding to 76003220 its reverse (2230067), we get a palindrome (78233287).

The spelling of 76003220 in words is "seventy-six million, three thousand, two hundred twenty".