76424 has 16 divisors (see below), whose sum is σ = 147420. Its totient is φ = 37120.

The previous prime is 76423. The next prime is 76441. The reversal of 76424 is 42467.

It can be written as a sum of positive squares in 2 ways, for example, as 62500 + 13924 = 250^2 + 118^2 .

It is a tetranacci number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 76424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212 + ... + 444.

2⁷⁶⁴²⁴ is an apocalyptic number.

It is an amenable number.

76424 is a deficient number, since it is larger than the sum of its proper divisors (70996).

76424 is a wasteful number, since it uses less digits than its factorization.

76424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 276 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 76424 is about 276.4489102890. The cubic root of 76424 is about 42.4368612638.

It can be divided in two parts, 764 and 24, that multiplied together give a triangular number (18336 = T₁₉₁).

The spelling of 76424 in words is "seventy-six thousand, four hundred twenty-four".