15078940 has 12 divisors (see below), whose sum is σ = 31665816. Its totient is φ = 6031568.

The previous prime is 15078937. The next prime is 15078979. The reversal of 15078940 is 4987051.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15078896 and 15078905.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 376954 + ... + 376993.

It is an arithmetic number, because the mean of its divisors is an integer number (2638818).

Almost surely, 2^15078940 is an apocalyptic number.

15078940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15078940 is an abundant number, since it is smaller than the sum of its proper divisors (16586876).

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

15078940 is a wasteful number, since it uses less digits than its factorization.

15078940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753956 (or 753954 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 15078940 is about 3883.1610834474. The cubic root of 15078940 is about 247.0530791204.

The spelling of 15078940 in words is "fifteen million, seventy-eight thousand, nine hundred forty".