1249842360 has 128 divisors (see below), whose sum is σ = 4136650560. Its totient is φ = 300134400.

The previous prime is 1249842337. The next prime is 1249842361. The reversal of 1249842360 is 632489421.

1249842360 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249842361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54190 + ... + 73730.

Almost surely, 2^1249842360 is an apocalyptic number.

1249842360 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 1249842360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2068325280).

1249842360 is an abundant number, since it is smaller than the sum of its proper divisors (2886808200).

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

1249842360 is a wasteful number, since it uses less digits than its factorization.

1249842360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19609 (or 19605 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1249842360 is about 35353.1096227758. The cubic root of 1249842360 is about 1077.1720597676.

The spelling of 1249842360 in words is "one billion, two hundred forty-nine million, eight hundred forty-two thousand, three hundred sixty".