1260537264 has 120 divisors (see below), whose sum is σ = 4207087872. Its totient is φ = 344488320.

The previous prime is 1260537247. The next prime is 1260537269. The reversal of 1260537264 is 4627350621.

1260537264 is a `hidden beast` number, since 1 + 2 + 60 + 537 + 2 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260537269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4002 + ... + 50369.

Almost surely, 2^1260537264 is an apocalyptic number.

1260537264 is a gapful number since it is divisible by the number (14) 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 1260537264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2103543936).

1260537264 is an abundant number, since it is smaller than the sum of its proper divisors (2946550608).

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

1260537264 is a wasteful number, since it uses less digits than its factorization.

1260537264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54415 (or 54406 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1260537264 is about 35504.0457412955. The cubic root of 1260537264 is about 1080.2357921381.

Adding to 1260537264 its reverse (4627350621), we get a palindrome (5887887885).

The spelling of 1260537264 in words is "one billion, two hundred sixty million, five hundred thirty-seven thousand, two hundred sixty-four".