1035502020 has 72 divisors (see below), whose sum is σ = 3589744704. Its totient is φ = 236685888.

The previous prime is 1035502001. The next prime is 1035502031. The reversal of 1035502020 is 202055301.

It is a happy number.

It is a super-3 number, since 3×1035502020³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1035501984 and 1035502002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409654 + ... + 412173.

Almost surely, 2^1035502020 is an apocalyptic number.

1035502020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1035502020 is an abundant number, since it is smaller than the sum of its proper divisors (2554242684).

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

1035502020 is a wasteful number, since it uses less digits than its factorization.

1035502020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821849 (or 821844 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1035502020 is about 32179.2172061410. The cubic root of 1035502020 is about 1011.6966613655.

Adding to 1035502020 its reverse (202055301), we get a palindrome (1237557321).

It can be divided in two parts, 103550 and 2020, that added together give a triangular number (105570 = T₄₅₉).

The spelling of 1035502020 in words is "one billion, thirty-five million, five hundred two thousand, twenty".