1267860612 has 48 divisors (see below), whose sum is σ = 3135065472. Its totient is φ = 397416960.

The previous prime is 1267860593. The next prime is 1267860613. The reversal of 1267860612 is 2160687621.

It is a super-2 number, since 2×1267860612² = 3214941062922029088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1267860613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343537 + ... + 347207.

It is an arithmetic number, because the mean of its divisors is an integer number (65313864).

Almost surely, 2^1267860612 is an apocalyptic number.

1267860612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1267860612 is an abundant number, since it is smaller than the sum of its proper divisors (1867204860).

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

1267860612 is a wasteful number, since it uses less digits than its factorization.

1267860612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388 (or 5386 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1267860612 is about 35607.0303732283. The cubic root of 1267860612 is about 1082.3237039178.

The spelling of 1267860612 in words is "one billion, two hundred sixty-seven million, eight hundred sixty thousand, six hundred twelve".