15042428 has 12 divisors (see below), whose sum is σ = 26362392. Its totient is φ = 7510320.

The previous prime is 15042427. The next prime is 15042451. The reversal of 15042428 is 82424051.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15042397 and 15042406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15042427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926 + ... + 5562.

It is an arithmetic number, because the mean of its divisors is an integer number (2196866).

Almost surely, 2^15042428 is an apocalyptic number.

It is an amenable number.

15042428 is a deficient number, since it is larger than the sum of its proper divisors (11319964).

15042428 is a wasteful number, since it uses less digits than its factorization.

15042428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452 (or 5450 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 15042428 is about 3878.4569096485. The cubic root of 15042428 is about 246.8535139769.

Adding to 15042428 its reverse (82424051), we get a palindrome (97466479).

The spelling of 15042428 in words is "fifteen million, forty-two thousand, four hundred twenty-eight".