680143490 has 32 divisors (see below), whose sum is σ = 1320109056. Its totient is φ = 250810560.

The previous prime is 680143459. The next prime is 680143507. The reversal of 680143490 is 94341086.

It is a self number, because there is not a number n which added to its sum of digits gives 680143490.

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, 115559 + ... + 121301.

It is an arithmetic number, because the mean of its divisors is an integer number (41253408).

Almost surely, 2^680143490 is an apocalyptic number.

680143490 is a deficient number, since it is larger than the sum of its proper divisors (639965566).

680143490 is a wasteful number, since it uses less digits than its factorization.

680143490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 680143490 is about 26079.5607708412. The cubic root of 680143490 is about 879.4277831295.

The spelling of 680143490 in words is "six hundred eighty million, one hundred forty-three thousand, four hundred ninety".