77752340 has 24 divisors (see below), whose sum is σ = 168548352. Its totient is φ = 30097440.

The previous prime is 77752289. The next prime is 77752343. The reversal of 77752340 is 4325777.

It is a self number, because there is not a number n which added to its sum of digits gives 77752340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77752343) 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, 62084 + ... + 63323.

It is an arithmetic number, because the mean of its divisors is an integer number (7022848).

Almost surely, 2^77752340 is an apocalyptic number.

It is an amenable number.

77752340 is an abundant number, since it is smaller than the sum of its proper divisors (90796012).

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

77752340 is a wasteful number, since it uses less digits than its factorization.

77752340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125447 (or 125445 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 77752340 is about 8817.7287325025. The cubic root of 77752340 is about 426.8131807480.

The spelling of 77752340 in words is "seventy-seven million, seven hundred fifty-two thousand, three hundred forty".