1335840220 has 288 divisors, whose sum is σ = 3659765760. Its totient is φ = 404352000.

The previous prime is 1335840211. The next prime is 1335840227. The reversal of 1335840220 is 220485331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1335840227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21898990 + ... + 21899050.

It is an arithmetic number, because the mean of its divisors is an integer number (12707520).

Almost surely, 2^1335840220 is an apocalyptic number.

1335840220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1335840220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829882880).

1335840220 is an abundant number, since it is smaller than the sum of its proper divisors (2323925540).

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

1335840220 is a wasteful number, since it uses less digits than its factorization.

1335840220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1335840220 is about 36549.1480064857. The cubic root of 1335840220 is about 1101.3317808884.

The spelling of 1335840220 in words is "one billion, three hundred thirty-five million, eight hundred forty thousand, two hundred twenty".