15323140 has 24 divisors (see below), whose sum is σ = 36775872. Its totient is φ = 5253600.

The previous prime is 15323123. The next prime is 15323183. The reversal of 15323140 is 4132351.

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, 54586 + ... + 54865.

It is an arithmetic number, because the mean of its divisors is an integer number (1532328).

Almost surely, 2^15323140 is an apocalyptic number.

15323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15323140 is an abundant number, since it is smaller than the sum of its proper divisors (21452732).

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

15323140 is a wasteful number, since it uses less digits than its factorization.

15323140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109467 (or 109465 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 15323140 is about 3914.4782538673. The cubic root of 15323140 is about 248.3795999058.

Adding to 15323140 its reverse (4132351), we get a palindrome (19455491).

The spelling of 15323140 in words is "fifteen million, three hundred twenty-three thousand, one hundred forty".