1035331220 has 48 divisors (see below), whose sum is σ = 2710689408. Its totient is φ = 322700160.

The previous prime is 1035331217. The next prime is 1035331237. The reversal of 1035331220 is 221335301.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1035331192 and 1035331201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334607 + ... + 337686.

It is an arithmetic number, because the mean of its divisors is an integer number (56472696).

Almost surely, 2^1035331220 is an apocalyptic number.

1035331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1035331220 is an abundant number, since it is smaller than the sum of its proper divisors (1675358188).

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

1035331220 is a wasteful number, since it uses less digits than its factorization.

1035331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672320 (or 672318 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1035331220 is about 32176.5632098893. The cubic root of 1035331220 is about 1011.6410338251.

Adding to 1035331220 its reverse (221335301), we get a palindrome (1256666521).

The spelling of 1035331220 in words is "one billion, thirty-five million, three hundred thirty-one thousand, two hundred twenty".