1006637042 has 4 divisors (see below), whose sum is σ = 1509955566. Its totient is φ = 503318520.

The previous prime is 1006637033. The next prime is 1006637063. The reversal of 1006637042 is 2407366001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2407366001 = 23 ⋅104668087.

It can be written as a sum of positive squares in only one way, i.e., 657358321 + 349278721 = 25639^2 + 18689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1006636996 and 1006637014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251659259 + ... + 251659262.

Almost surely, 2^1006637042 is an apocalyptic number.

1006637042 is a deficient number, since it is larger than the sum of its proper divisors (503318524).

1006637042 is an equidigital number, since it uses as much as digits as its factorization.

1006637042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503318523.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1006637042 is about 31727.5439011594. The cubic root of 1006637042 is about 1002.2074708203.

The spelling of 1006637042 in words is "one billion, six million, six hundred thirty-seven thousand, forty-two".