1249654224 has 160 divisors (see below), whose sum is σ = 4207230720. Its totient is φ = 310173696.

The previous prime is 1249654181. The next prime is 1249654337. The reversal of 1249654224 is 4224569421.

It is a happy number.

It is a super-2 number, since 2×1249654224² = 3123271359122084352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65842 + ... + 82670.

It is an arithmetic number, because the mean of its divisors is an integer number (26295192).

Almost surely, 2^1249654224 is an apocalyptic number.

1249654224 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 1249654224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2103615360).

1249654224 is an abundant number, since it is smaller than the sum of its proper divisors (2957576496).

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

1249654224 is a wasteful number, since it uses less digits than its factorization.

1249654224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16877 (or 16871 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 1249654224 is about 35350.4487100235. The cubic root of 1249654224 is about 1077.1180089480.

The spelling of 1249654224 in words is "one billion, two hundred forty-nine million, six hundred fifty-four thousand, two hundred twenty-four".