1267520352 has 96 divisors (see below), whose sum is σ = 3828384000. Its totient is φ = 359689728.

The previous prime is 1267520341. The next prime is 1267520377. The reversal of 1267520352 is 2530257621.

It is a tau number, because it is divible by the number of its divisors (96).

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, 93799 + ... + 106457.

It is an arithmetic number, because the mean of its divisors is an integer number (39879000).

Almost surely, 2^1267520352 is an apocalyptic number.

1267520352 is a gapful number since it is divisible by the number (12) 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 1267520352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1914192000).

1267520352 is an abundant number, since it is smaller than the sum of its proper divisors (2560863648).

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

1267520352 is a wasteful number, since it uses less digits than its factorization.

1267520352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828 (or 12820 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 1267520352 is about 35602.2520635984. The cubic root of 1267520352 is about 1082.2268729756.

Adding to 1267520352 its reverse (2530257621), we get a palindrome (3797777973).

The spelling of 1267520352 in words is "one billion, two hundred sixty-seven million, five hundred twenty thousand, three hundred fifty-two".