1249254260 has 24 divisors (see below), whose sum is σ = 2637035016. Its totient is φ = 497111040.

The previous prime is 1249254247. The next prime is 1249254271. The reversal of 1249254260 is 624529421.

It can be written as a sum of positive squares in 4 ways, for example, as 81938704 + 1167315556 = 9052^2 + 34166^2 .

It is a super-2 number, since 2×1249254260² = 3121272412256295200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1249254260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157961 + ... + 165680.

It is an arithmetic number, because the mean of its divisors is an integer number (109876459).

Almost surely, 2^1249254260 is an apocalyptic number.

1249254260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1249254260 is an abundant number, since it is smaller than the sum of its proper divisors (1387780756).

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

1249254260 is a wasteful number, since it uses less digits than its factorization.

1249254260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323843 (or 323841 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1249254260 is about 35344.7911296700. The cubic root of 1249254260 is about 1077.0030826511.

The spelling of 1249254260 in words is "one billion, two hundred forty-nine million, two hundred fifty-four thousand, two hundred sixty".