1268016458 has 16 divisors (see below), whose sum is σ = 1916006400. Its totient is φ = 629362800.

The previous prime is 1268016457. The next prime is 1268016461. The reversal of 1268016458 is 8546108621.

It is not an unprimeable number, because it can be changed into a prime (1268016457) 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, 180023 + ... + 186933.

It is an arithmetic number, because the mean of its divisors is an integer number (119750400).

Almost surely, 2^1268016458 is an apocalyptic number.

1268016458 is a deficient number, since it is larger than the sum of its proper divisors (647989942).

1268016458 is a wasteful number, since it uses less digits than its factorization.

1268016458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1268016458 is about 35609.2187221231. The cubic root of 1268016458 is about 1082.3680486740.

The spelling of 1268016458 in words is "one billion, two hundred sixty-eight million, sixteen thousand, four hundred fifty-eight".