1042420502 has 4 divisors (see below), whose sum is σ = 1563630756. Its totient is φ = 521210250.

The previous prime is 1042420471. The next prime is 1042420507. The reversal of 1042420502 is 2050242401.

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: 2050242401 = 137 ⋅14965273.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042420507) by changing a digit.

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, 260605124 + ... + 260605127.

It is an arithmetic number, because the mean of its divisors is an integer number (390907689).

Almost surely, 2^1042420502 is an apocalyptic number.

1042420502 is a deficient number, since it is larger than the sum of its proper divisors (521210254).

1042420502 is an equidigital number, since it uses as much as digits as its factorization.

1042420502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521210253.

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

The square root of 1042420502 is about 32286.5374730707. The cubic root of 1042420502 is about 1013.9448058324.

Adding to 1042420502 its reverse (2050242401), we get a palindrome (3092662903).

The spelling of 1042420502 in words is "one billion, forty-two million, four hundred twenty thousand, five hundred two".