77253340 has 24 divisors (see below), whose sum is σ = 162817200. Its totient is φ = 30789888.

The previous prime is 77253331. The next prime is 77253347. The reversal of 77253340 is 4335277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77253347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165 + ... + 12484.

It is an arithmetic number, because the mean of its divisors is an integer number (6784050).

Almost surely, 2^77253340 is an apocalyptic number.

It is an amenable number.

77253340 is an abundant number, since it is smaller than the sum of its proper divisors (85563860).

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

77253340 is a wasteful number, since it uses less digits than its factorization.

77253340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941 (or 13939 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 77253340 is about 8789.3879195311. The cubic root of 77253340 is about 425.8981513518.

The spelling of 77253340 in words is "seventy-seven million, two hundred fifty-three thousand, three hundred forty".