15142428 has 36 divisors (see below), whose sum is σ = 43745520. Its totient is φ = 4326336.

The previous prime is 15142403. The next prime is 15142429. The reversal of 15142428 is 82424151.

15142428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29793 + ... + 30296.

Almost surely, 2^15142428 is an apocalyptic number.

15142428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15142428 is an abundant number, since it is smaller than the sum of its proper divisors (28603092).

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

15142428 is a wasteful number, since it uses less digits than its factorization.

15142428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60106 (or 60101 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 15142428 is about 3891.3272799907. The cubic root of 15142428 is about 247.3993223824.

Adding to 15142428 its reverse (82424151), we get a palindrome (97566579).

The spelling of 15142428 in words is "fifteen million, one hundred forty-two thousand, four hundred twenty-eight".