766319420 has 12 divisors (see below), whose sum is σ = 1609270824. Its totient is φ = 306527760.

The previous prime is 766319369. The next prime is 766319423. The reversal of 766319420 is 24913667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766319423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19157966 + ... + 19158005.

It is an arithmetic number, because the mean of its divisors is an integer number (134105902).

Almost surely, 2^766319420 is an apocalyptic number.

It is an amenable number.

766319420 is an abundant number, since it is smaller than the sum of its proper divisors (842951404).

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

766319420 is a wasteful number, since it uses less digits than its factorization.

766319420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38315980 (or 38315978 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 766319420 is about 27682.4749616070. The cubic root of 766319420 is about 915.1029257046.

The spelling of 766319420 in words is "seven hundred sixty-six million, three hundred nineteen thousand, four hundred twenty".