1220007450 has 24 divisors (see below), whose sum is σ = 3025618848. Its totient is φ = 325335280.

The previous prime is 1220007433. The next prime is 1220007493. The reversal of 1220007450 is 547000221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4066542 + ... + 4066841.

It is an arithmetic number, because the mean of its divisors is an integer number (126067452).

Almost surely, 2^1220007450 is an apocalyptic number.

1220007450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220007450 is an abundant number, since it is smaller than the sum of its proper divisors (1805611398).

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

1220007450 is a wasteful number, since it uses less digits than its factorization.

1220007450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133398 (or 8133393 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 1220007450 is about 34928.6050394229. The cubic root of 1220007450 is about 1068.5319051572.

Adding to 1220007450 its reverse (547000221), we get a palindrome (1767007671).

The spelling of 1220007450 in words is "one billion, two hundred twenty million, seven thousand, four hundred fifty".