15384940 has 12 divisors (see below), whose sum is σ = 32308416. Its totient is φ = 6153968.

The previous prime is 15384931. The next prime is 15384973. The reversal of 15384940 is 4948351.

15384940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15384896 and 15384905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384604 + ... + 384643.

It is an arithmetic number, because the mean of its divisors is an integer number (2692368).

Almost surely, 2^15384940 is an apocalyptic number.

15384940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15384940 is an abundant number, since it is smaller than the sum of its proper divisors (16923476).

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

15384940 is a wasteful number, since it uses less digits than its factorization.

15384940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769256 (or 769254 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 15384940 is about 3922.3640830499. The cubic root of 15384940 is about 248.7130665770.

The spelling of 15384940 in words is "fifteen million, three hundred eighty-four thousand, nine hundred forty".