15040450 has 12 divisors (see below), whose sum is σ = 27975330. Its totient is φ = 6016160.

The previous prime is 15040439. The next prime is 15040451. The reversal of 15040450 is 5404051.

It can be written as a sum of positive squares in 3 ways, for example, as 14356521 + 683929 = 3789^2 + 827^2 .

It is not an unprimeable number, because it can be changed into a prime (15040451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150355 + ... + 150454.

Almost surely, 2^15040450 is an apocalyptic number.

15040450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15040450 is a deficient number, since it is larger than the sum of its proper divisors (12934880).

15040450 is a wasteful number, since it uses less digits than its factorization.

15040450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300821 (or 300816 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 15040450 is about 3878.2019029442. The cubic root of 15040450 is about 246.8426935239.

The spelling of 15040450 in words is "fifteen million, forty thousand, four hundred fifty".