15047040 has 128 divisors (see below), whose sum is σ = 50893920. Its totient is φ = 3768320.

The previous prime is 15047029. The next prime is 15047099. The reversal of 15047040 is 4074051.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 15046998 and 15047016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32410 + ... + 32870.

Almost surely, 2^15047040 is an apocalyptic number.

15047040 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 15047040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25446960).

15047040 is an abundant number, since it is smaller than the sum of its proper divisors (35846880).

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

15047040 is a wasteful number, since it uses less digits than its factorization.

15047040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 15047040 is about 3879.0514304402. The cubic root of 15047040 is about 246.8787397820.

The spelling of 15047040 in words is "fifteen million, forty-seven thousand, forty".