77340408 has 32 divisors (see below), whose sum is σ = 193695360. Its totient is φ = 25734240.

The previous prime is 77340407. The next prime is 77340433. The reversal of 77340408 is 80404377.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77340407) 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, 12591 + ... + 17697.

It is an arithmetic number, because the mean of its divisors is an integer number (6052980).

Almost surely, 2^77340408 is an apocalyptic number.

It is an amenable number.

77340408 is an abundant number, since it is smaller than the sum of its proper divisors (116354952).

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

77340408 is a wasteful number, since it uses less digits than its factorization.

77340408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747 (or 5743 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 77340408 is about 8794.3395431380. The cubic root of 77340408 is about 426.0580934242.

The spelling of 77340408 in words is "seventy-seven million, three hundred forty thousand, four hundred eight".