76219540 has 24 divisors (see below), whose sum is σ = 165581640. Its totient is φ = 29436288.

The previous prime is 76219529. The next prime is 76219547. The reversal of 76219540 is 4591267.

It can be written as a sum of positive squares in 4 ways, for example, as 22108804 + 54110736 = 4702^2 + 7356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76219496 and 76219505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76219547) 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, 65127 + ... + 66286.

It is an arithmetic number, because the mean of its divisors is an integer number (6899235).

Almost surely, 2^76219540 is an apocalyptic number.

It is an amenable number.

76219540 is an abundant number, since it is smaller than the sum of its proper divisors (89362100).

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

76219540 is a wasteful number, since it uses less digits than its factorization.

76219540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131451 (or 131449 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 76219540 is about 8730.3802895407. The cubic root of 76219540 is about 423.9898315468.

It can be divided in two parts, 7621 and 9540, that added together give a square (17161 = 131²).

The spelling of 76219540 in words is "seventy-six million, two hundred nineteen thousand, five hundred forty".