1532742842 has 4 divisors (see below), whose sum is σ = 2299114266. Its totient is φ = 766371420.

The previous prime is 1532742773. The next prime is 1532742847. The reversal of 1532742842 is 2482472351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2482472351 = 16451 ⋅150901.

It can be written as a sum of positive squares in only one way, i.e., 1470032281 + 62710561 = 38341^2 + 7919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1532742796 and 1532742805.

It is not an unprimeable number, because it can be changed into a prime (1532742847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383185709 + ... + 383185712.

Almost surely, 2^1532742842 is an apocalyptic number.

1532742842 is a deficient number, since it is larger than the sum of its proper divisors (766371424).

1532742842 is an equidigital number, since it uses as much as digits as its factorization.

1532742842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766371423.

The product of its digits is 107520, while the sum is 38.

The square root of 1532742842 is about 39150.2597947957. The cubic root of 1532742842 is about 1152.9835175030.

The spelling of 1532742842 in words is "one billion, five hundred thirty-two million, seven hundred forty-two thousand, eight hundred forty-two".