1267560960 has 80 divisors (see below), whose sum is σ = 4052258496. Its totient is φ = 338014208.

The previous prime is 1267560937. The next prime is 1267560979. The reversal of 1267560960 is 690657621.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1267560960² = 3213421574632243200, which contains 22 as substring.

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, 74844 + ... + 90203.

Almost surely, 2^1267560960 is an apocalyptic number.

1267560960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1267560960 is an abundant number, since it is smaller than the sum of its proper divisors (2784697536).

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

1267560960 is an equidigital number, since it uses as much as digits as its factorization.

1267560960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165073 (or 165057 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 1267560960 is about 35602.8223600321. The cubic root of 1267560960 is about 1082.2384300811.

The spelling of 1267560960 in words is "one billion, two hundred sixty-seven million, five hundred sixty thousand, nine hundred sixty".