1220455032 has 16 divisors (see below), whose sum is σ = 3051137640. Its totient is φ = 406818336.

The previous prime is 1220455021. The next prime is 1220455039. The reversal of 1220455032 is 2305540221.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 50852293 = 1220455032 / (1 + 2 + 2 + 0 + 4 + 5 + 5 + 0 + 3 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1220454993 and 1220455011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220455039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25426123 + ... + 25426170.

Almost surely, 2^1220455032 is an apocalyptic number.

1220455032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220455032 is an abundant number, since it is smaller than the sum of its proper divisors (1830682608).

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

1220455032 is a wasteful number, since it uses less digits than its factorization.

1220455032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50852302 (or 50852298 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1220455032 is about 34935.0115500196. The cubic root of 1220455032 is about 1068.6625593247.

Adding to 1220455032 its reverse (2305540221), we get a palindrome (3525995253).

The spelling of 1220455032 in words is "one billion, two hundred twenty million, four hundred fifty-five thousand, thirty-two".