76640229 has 16 divisors (see below), whose sum is σ = 113712000. Its totient is φ = 51016608.

The previous prime is 76640219. The next prime is 76640231. The reversal of 76640229 is 92204667.

It is a happy number.

76640229 is a `hidden beast` number, since 7 + 6 + 640 + 2 + 2 + 9 = 666.

It is not a de Polignac number, because 76640229 - 2⁵ = 76640197 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 76640193 and 76640202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76640219) 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, 20497 + ... + 23945.

It is an arithmetic number, because the mean of its divisors is an integer number (7107000).

Almost surely, 2^76640229 is an apocalyptic number.

It is an amenable number.

76640229 is a deficient number, since it is larger than the sum of its proper divisors (37071771).

76640229 is a wasteful number, since it uses less digits than its factorization.

76640229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281 (or 4275 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 76640229 is about 8754.4405303823. The cubic root of 76640229 is about 424.7684625794.

The spelling of 76640229 in words is "seventy-six million, six hundred forty thousand, two hundred twenty-nine".