1267041600 has 504 divisors, whose sum is σ = 5183611680. Its totient is φ = 290304000.

The previous prime is 1267041599. The next prime is 1267041649. The reversal of 1267041600 is 61407621.

1267041600 is a `hidden beast` number, since 12 + 6 + 7 + 0 + 41 + 600 = 666.

It is a super-2 number, since 2×1267041600² = 3210788832261120000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3009390 + ... + 3009810.

Almost surely, 2^1267041600 is an apocalyptic number.

1267041600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1267041600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2591805840).

1267041600 is an abundant number, since it is smaller than the sum of its proper divisors (3916570080).

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

1267041600 is a wasteful number, since it uses less digits than its factorization.

1267041600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1267041600 is about 35595.5278089818. The cubic root of 1267041600 is about 1082.0906007321.

The spelling of 1267041600 in words is "one billion, two hundred sixty-seven million, forty-one thousand, six hundred".