1249354560 has 112 divisors (see below), whose sum is σ = 4094756352. Its totient is φ = 322406400.

The previous prime is 1249354541. The next prime is 1249354567. The reversal of 1249354560 is 654539421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249354567) 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, 8770 + ... + 50750.

Almost surely, 2^1249354560 is an apocalyptic number.

1249354560 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 1249354560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047378176).

1249354560 is an abundant number, since it is smaller than the sum of its proper divisors (2845401792).

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

1249354560 is a wasteful number, since it uses less digits than its factorization.

1249354560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42032 (or 42022 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 1249354560 is about 35346.2099807037. The cubic root of 1249354560 is about 1077.0319053180.

The spelling of 1249354560 in words is "one billion, two hundred forty-nine million, three hundred fifty-four thousand, five hundred sixty".