1149023860 has 24 divisors (see below), whose sum is σ = 2539948320. Its totient is φ = 435419424.

The previous prime is 1149023851. The next prime is 1149023861. The reversal of 1149023860 is 683209411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149023861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1511494 + ... + 1512253.

It is an arithmetic number, because the mean of its divisors is an integer number (105831180).

Almost surely, 2^1149023860 is an apocalyptic number.

1149023860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1149023860 is an abundant number, since it is smaller than the sum of its proper divisors (1390924460).

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

1149023860 is a wasteful number, since it uses less digits than its factorization.

1149023860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023775 (or 3023773 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1149023860 is about 33897.2544610917. The cubic root of 1149023860 is about 1047.3930368886.

The spelling of 1149023860 in words is "one billion, one hundred forty-nine million, twenty-three thousand, eight hundred sixty".