1020435650 has 24 divisors (see below), whose sum is σ = 2044012404. Its totient is φ = 376776000.

The previous prime is 1020435613. The next prime is 1020435671. The reversal of 1020435650 is 565340201.

1020435650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 509811241 + 510624409 = 22579^2 + 22597^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 784301 + ... + 785600.

Almost surely, 2^1020435650 is an apocalyptic number.

1020435650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020435650 is an abundant number, since it is smaller than the sum of its proper divisors (1023576754).

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

1020435650 is a wasteful number, since it uses less digits than its factorization.

1020435650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569926 (or 1569921 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1020435650 is about 31944.2584825505. The cubic root of 1020435650 is about 1006.7660013131.

Adding to 1020435650 its reverse (565340201), we get a palindrome (1585775851).

It can be divided in two parts, 10204 and 35650, that added together give a palindrome (45854).

The spelling of 1020435650 in words is "one billion, twenty million, four hundred thirty-five thousand, six hundred fifty".