76278045 has 16 divisors (see below), whose sum is σ = 122561280. Its totient is φ = 40509504.

The previous prime is 76278029. The next prime is 76278049. The reversal of 76278045 is 54087267.

It is not a de Polignac number, because 76278045 - 2⁴ = 76278029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 76277994 and 76278012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76278049) 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, 7054 + ... + 14223.

It is an arithmetic number, because the mean of its divisors is an integer number (7660080).

Almost surely, 2^76278045 is an apocalyptic number.

It is an amenable number.

76278045 is a deficient number, since it is larger than the sum of its proper divisors (46283235).

76278045 is a wasteful number, since it uses less digits than its factorization.

76278045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21524.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 76278045 is about 8733.7303026828. The cubic root of 76278045 is about 424.0982865922.

The spelling of 76278045 in words is "seventy-six million, two hundred seventy-eight thousand, forty-five".