1220140304 has 40 divisors (see below), whose sum is σ = 2418595200. Its totient is φ = 596033408.

The previous prime is 1220140219. The next prime is 1220140307. The reversal of 1220140304 is 4030410221.

It is a super-2 number, since 2×1220140304² = 2977484722890424832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220140307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580247 + ... + 582345.

It is an arithmetic number, because the mean of its divisors is an integer number (60464880).

Almost surely, 2^1220140304 is an apocalyptic number.

It is an amenable number.

1220140304 is a deficient number, since it is larger than the sum of its proper divisors (1198454896).

1220140304 is a wasteful number, since it uses less digits than its factorization.

1220140304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1220140304 is about 34930.5067813223. The cubic root of 1220140304 is about 1068.5706900529.

Adding to 1220140304 its reverse (4030410221), we get a palindrome (5250550525).

The spelling of 1220140304 in words is "one billion, two hundred twenty million, one hundred forty thousand, three hundred four".