15040749 has 8 divisors (see below), whose sum is σ = 20094912. Its totient is φ = 10006880.

The previous prime is 15040747. The next prime is 15040783. The reversal of 15040749 is 94704051.

It is a happy number.

15040749 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15040749 - 2¹ = 15040747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3249 + ... + 6374.

It is an arithmetic number, because the mean of its divisors is an integer number (2511864).

Almost surely, 2^15040749 is an apocalyptic number.

It is an amenable number.

15040749 is a deficient number, since it is larger than the sum of its proper divisors (5054163).

15040749 is an equidigital number, since it uses as much as digits as its factorization.

15040749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10147.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 15040749 is about 3878.2404515450. The cubic root of 15040749 is about 246.8443292347.

The spelling of 15040749 in words is "fifteen million, forty thousand, seven hundred forty-nine".