1268603740 has 48 divisors (see below), whose sum is σ = 2686479264. Its totient is φ = 503193600.

The previous prime is 1268603701. The next prime is 1268603771. The reversal of 1268603740 is 473068621.

It is a self number, because there is not a number n which added to its sum of digits gives 1268603740.

It is a congruent number.

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, 2198332 + ... + 2198908.

It is an arithmetic number, because the mean of its divisors is an integer number (55968318).

Almost surely, 2^1268603740 is an apocalyptic number.

1268603740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1268603740 is an abundant number, since it is smaller than the sum of its proper divisors (1417875524).

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

1268603740 is a wasteful number, since it uses less digits than its factorization.

1268603740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1268603740 is about 35617.4639748537. The cubic root of 1268603740 is about 1082.5351225210.

The spelling of 1268603740 in words is "one billion, two hundred sixty-eight million, six hundred three thousand, seven hundred forty".