1220003340 has 48 divisors (see below), whose sum is σ = 3420130560. Its totient is φ = 324941760.

The previous prime is 1220003311. The next prime is 1220003359. The reversal of 1220003340 is 433000221.

It is a super-2 number, since 2×1220003340² = 2976816299222311200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 39705 + ... + 63375.

It is an arithmetic number, because the mean of its divisors is an integer number (71252720).

Almost surely, 2^1220003340 is an apocalyptic number.

1220003340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220003340 is an abundant number, since it is smaller than the sum of its proper divisors (2200127220).

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

1220003340 is a wasteful number, since it uses less digits than its factorization.

1220003340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24542 (or 24540 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1220003340 is about 34928.5462050742. The cubic root of 1220003340 is about 1068.5307052544.

Adding to 1220003340 its reverse (433000221), we get a palindrome (1653003561).

The spelling of 1220003340 in words is "one billion, two hundred twenty million, three thousand, three hundred forty".