1042220518 has 4 divisors (see below), whose sum is σ = 1563330780. Its totient is φ = 521110258.

The previous prime is 1042220503. The next prime is 1042220521. The reversal of 1042220518 is 8150222401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8150222401 = 643 ⋅12675307.

It is a junction number, because it is equal to n+sod(n) for n = 1042220492 and 1042220501.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 260555128 + ... + 260555131.

It is an arithmetic number, because the mean of its divisors is an integer number (390832695).

Almost surely, 2^1042220518 is an apocalyptic number.

1042220518 is a deficient number, since it is larger than the sum of its proper divisors (521110262).

1042220518 is an equidigital number, since it uses as much as digits as its factorization.

1042220518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521110261.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1042220518 is about 32283.4403061384. The cubic root of 1042220518 is about 1013.8799613331.

Adding to 1042220518 its reverse (8150222401), we get a palindrome (9192442919).

The spelling of 1042220518 in words is "one billion, forty-two million, two hundred twenty thousand, five hundred eighteen".