77030540 has 24 divisors (see below), whose sum is σ = 162763440. Its totient is φ = 30621888.

The previous prime is 77030539. The next prime is 77030543. The reversal of 77030540 is 4503077.

It is not an unprimeable number, because it can be changed into a prime (77030543) 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, 8555 + ... + 15074.

It is an arithmetic number, because the mean of its divisors is an integer number (6781810).

Almost surely, 2^77030540 is an apocalyptic number.

It is an amenable number.

77030540 is an abundant number, since it is smaller than the sum of its proper divisors (85732900).

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

77030540 is a wasteful number, since it uses less digits than its factorization.

77030540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23801 (or 23799 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 77030540 is about 8776.7043928801. The cubic root of 77030540 is about 425.4883245139.

The spelling of 77030540 in words is "seventy-seven million, thirty thousand, five hundred forty".