1542428 has 6 divisors (see below), whose sum is σ = 2699256. Its totient is φ = 771212.

The previous prime is 1542421. The next prime is 1542433. The reversal of 1542428 is 8242451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1542397 and 1542406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192800 + ... + 192807.

It is an arithmetic number, because the mean of its divisors is an integer number (449876).

2^1542428 is an apocalyptic number.

It is an amenable number.

1542428 is a deficient number, since it is larger than the sum of its proper divisors (1156828).

1542428 is a wasteful number, since it uses less digits than its factorization.

1542428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385611 (or 385609 counting only the distinct ones).

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

The square root of 1542428 is about 1241.9452483906. The cubic root of 1542428 is about 115.5406926698.

Adding to 1542428 its reverse (8242451), we get a palindrome (9784879).

The spelling of 1542428 in words is "one million, five hundred forty-two thousand, four hundred twenty-eight".