15540960 has 48 divisors (see below), whose sum is σ = 48955536. Its totient is φ = 4144128.

The previous prime is 15540947. The next prime is 15540961. The reversal of 15540960 is 6904551.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15540961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15709 + ... + 16668.

It is an arithmetic number, because the mean of its divisors is an integer number (1019907).

Almost surely, 2^15540960 is an apocalyptic number.

15540960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15540960 is an abundant number, since it is smaller than the sum of its proper divisors (33414576).

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

15540960 is a wasteful number, since it uses less digits than its factorization.

15540960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32395 (or 32387 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 15540960 is about 3942.2024301144. The cubic root of 15540960 is about 249.5509806761.

The spelling of 15540960 in words is "fifteen million, five hundred forty thousand, nine hundred sixty".