1324123240 has 32 divisors (see below), whose sum is σ = 3250121760. Its totient is φ = 481499200.

The previous prime is 1324123219. The next prime is 1324123247. The reversal of 1324123240 is 423214231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1324123247) 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, 1504246 + ... + 1505125.

It is an arithmetic number, because the mean of its divisors is an integer number (101566305).

Almost surely, 2^1324123240 is an apocalyptic number.

1324123240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324123240 is an abundant number, since it is smaller than the sum of its proper divisors (1925998520).

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

1324123240 is a wasteful number, since it uses less digits than its factorization.

1324123240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009393 (or 3009389 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1324123240 is about 36388.5042286709. The cubic root of 1324123240 is about 1098.1023037757.

Adding to 1324123240 its reverse (423214231), we get a palindrome (1747337471).

Subtracting from 1324123240 its reverse (423214231), we obtain a palindrome (900909009).

It can be divided in two parts, 13241 and 23240, that added together give a square (36481 = 191²).

The spelling of 1324123240 in words is "one billion, three hundred twenty-four million, one hundred twenty-three thousand, two hundred forty".