76445424 has 80 divisors (see below), whose sum is σ = 239389440. Its totient is φ = 23163840.

The previous prime is 76445423. The next prime is 76445429. The reversal of 76445424 is 42454467.

76445424 is a `hidden beast` number, since 7 + 644 + 5 + 4 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76445423) 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, 3292 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (2992368).

Almost surely, 2^76445424 is an apocalyptic number.

It is an amenable number.

76445424 is an abundant number, since it is smaller than the sum of its proper divisors (162944016).

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

76445424 is a wasteful number, since it uses less digits than its factorization.

76445424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16115 (or 16103 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 76445424 is about 8743.3073833647. The cubic root of 76445424 is about 424.4082634616.

The spelling of 76445424 in words is "seventy-six million, four hundred forty-five thousand, four hundred twenty-four".