15340442 has 16 divisors (see below), whose sum is σ = 25012680. Its totient is φ = 7013952.

The previous prime is 15340421. The next prime is 15340469. The reversal of 15340442 is 24404351.

15340442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9916201 + 5424241 = 3149^2 + 2329^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128 + ... + 5540.

Almost surely, 2^15340442 is an apocalyptic number.

15340442 is a deficient number, since it is larger than the sum of its proper divisors (9672238).

15340442 is a wasteful number, since it uses less digits than its factorization.

15340442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 15340442 is about 3916.6876311496. The cubic root of 15340442 is about 248.4730500161.

Adding to 15340442 its reverse (24404351), we get a palindrome (39744793).

The spelling of 15340442 in words is "fifteen million, three hundred forty thousand, four hundred forty-two".