766547940 has 48 divisors (see below), whose sum is σ = 2157603840. Its totient is φ = 203339520.

The previous prime is 766547927. The next prime is 766547963. The reversal of 766547940 is 49745667.

It is a self number, because there is not a number n which added to its sum of digits gives 766547940.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21985 + ... + 44904.

It is an arithmetic number, because the mean of its divisors is an integer number (44950080).

Almost surely, 2^766547940 is an apocalyptic number.

It is an amenable number.

766547940 is an abundant number, since it is smaller than the sum of its proper divisors (1391055900).

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

766547940 is a wasteful number, since it uses less digits than its factorization.

766547940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67092 (or 67090 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The square root of 766547940 is about 27686.6021750593. The cubic root of 766547940 is about 915.1938793078.

The spelling of 766547940 in words is "seven hundred sixty-six million, five hundred forty-seven thousand, nine hundred forty".