77450228 has 12 divisors (see below), whose sum is σ = 135637152. Its totient is φ = 38696760.

The previous prime is 77450227. The next prime is 77450231. The reversal of 77450228 is 82205477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77450227) 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, 200 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (11303096).

Almost surely, 2^77450228 is an apocalyptic number.

It is an amenable number.

77450228 is a deficient number, since it is larger than the sum of its proper divisors (58186924).

77450228 is a wasteful number, since it uses less digits than its factorization.

77450228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14182 (or 14180 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 77450228 is about 8800.5811171763. The cubic root of 77450228 is about 426.2596593414.

The spelling of 77450228 in words is "seventy-seven million, four hundred fifty thousand, two hundred twenty-eight".