1020426002 has 4 divisors (see below), whose sum is σ = 1530639006. Its totient is φ = 510213000.

The previous prime is 1020425993. The next prime is 1020426007. The reversal of 1020426002 is 2006240201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 798684121 + 221741881 = 28261^2 + 14891^2 .

It is a super-3 number, since 3×1020426002³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020426007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255106499 + ... + 255106502.

Almost surely, 2^1020426002 is an apocalyptic number.

1020426002 is a deficient number, since it is larger than the sum of its proper divisors (510213004).

1020426002 is an equidigital number, since it uses as much as digits as its factorization.

1020426002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510213003.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1020426002 is about 31944.1074691405. The cubic root of 1020426002 is about 1006.7628283843.

Adding to 1020426002 its reverse (2006240201), we get a palindrome (3026666203).

The spelling of 1020426002 in words is "one billion, twenty million, four hundred twenty-six thousand, two".