1020355602 has 64 divisors (see below), whose sum is σ = 2422151424. Its totient is φ = 280488960.

The previous prime is 1020355597. The next prime is 1020355619. The reversal of 1020355602 is 2065530201.

It is a super-2 number, since 2×1020355602² = 2082251109065564808, which contains 22 as substring.

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 in 31 ways as a sum of consecutive naturals, for example, 121648 + ... + 129764.

It is an arithmetic number, because the mean of its divisors is an integer number (37846116).

Almost surely, 2^1020355602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020355602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1211075712).

1020355602 is an abundant number, since it is smaller than the sum of its proper divisors (1401795822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020355602 is a wasteful number, since it uses less digits than its factorization.

1020355602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1020355602 is about 31943.0055254668. The cubic root of 1020355602 is about 1006.7396753963.

Adding to 1020355602 its reverse (2065530201), we get a palindrome (3085885803).

The spelling of 1020355602 in words is "one billion, twenty million, three hundred fifty-five thousand, six hundred two".