1524020042 has 8 divisors (see below), whose sum is σ = 2286238500. Its totient is φ = 761940544.

The previous prime is 1524019999. The next prime is 1524020107. The reversal of 1524020042 is 2400204251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1420611481 + 103408561 = 37691^2 + 10169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1524019996 and 1524020023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617 + ... + 55212.

Almost surely, 2^1524020042 is an apocalyptic number.

1524020042 is a deficient number, since it is larger than the sum of its proper divisors (762218458).

1524020042 is a wasteful number, since it uses less digits than its factorization.

1524020042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69480.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1524020042 is about 39038.6992867334. The cubic root of 1524020042 is about 1150.7921554109.

Adding to 1524020042 its reverse (2400204251), we get a palindrome (3924224293).

The spelling of 1524020042 in words is "one billion, five hundred twenty-four million, twenty thousand, forty-two".