1353612220 has 48 divisors (see below), whose sum is σ = 2952391680. Its totient is φ = 520921664.

The previous prime is 1353612157. The next prime is 1353612263. The reversal of 1353612220 is 222163531.

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, 43257 + ... + 67663.

It is an arithmetic number, because the mean of its divisors is an integer number (61508160).

Almost surely, 2^1353612220 is an apocalyptic number.

1353612220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1353612220 is an abundant number, since it is smaller than the sum of its proper divisors (1598779460).

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

1353612220 is a wasteful number, since it uses less digits than its factorization.

1353612220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24522 (or 24520 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1353612220 is about 36791.4693916946. The cubic root of 1353612220 is about 1106.1943148367.

Adding to 1353612220 its reverse (222163531), we get a palindrome (1575775751).

The spelling of 1353612220 in words is "one billion, three hundred fifty-three million, six hundred twelve thousand, two hundred twenty".