1266403360 has 48 divisors (see below), whose sum is σ = 3015484416. Its totient is φ = 502564608.

The previous prime is 1266403337. The next prime is 1266403379. The reversal of 1266403360 is 633046621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10842 + ... + 51481.

It is an arithmetic number, because the mean of its divisors is an integer number (62822592).

Almost surely, 2^1266403360 is an apocalyptic number.

1266403360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1266403360 is an abundant number, since it is smaller than the sum of its proper divisors (1749081056).

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

1266403360 is a wasteful number, since it uses less digits than its factorization.

1266403360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62465 (or 62457 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1266403360 is about 35586.5615085245. The cubic root of 1266403360 is about 1081.9088783376.

Adding to 1266403360 its reverse (633046621), we get a palindrome (1899449981).

The spelling of 1266403360 in words is "one billion, two hundred sixty-six million, four hundred three thousand, three hundred sixty".