76128406 has 4 divisors (see below), whose sum is σ = 114192612. Its totient is φ = 38064202.

The previous prime is 76128373. The next prime is 76128407. The reversal of 76128406 is 60482167.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76128407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19032100 + ... + 19032103.

It is an arithmetic number, because the mean of its divisors is an integer number (28548153).

Almost surely, 2^76128406 is an apocalyptic number.

76128406 is a deficient number, since it is larger than the sum of its proper divisors (38064206).

76128406 is a wasteful number, since it uses less digits than its factorization.

76128406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38064205.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 76128406 is about 8725.1593681720. The cubic root of 76128406 is about 423.8207790972.

The spelling of 76128406 in words is "seventy-six million, one hundred twenty-eight thousand, four hundred six".