1246221004 has 24 divisors (see below), whose sum is σ = 2503152288. Its totient is φ = 531799680.

The previous prime is 1246220981. The next prime is 1246221007. The reversal of 1246221004 is 4001226421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1246221007) 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, 88987 + ... + 102034.

It is an arithmetic number, because the mean of its divisors is an integer number (104298012).

Almost surely, 2^1246221004 is an apocalyptic number.

1246221004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1246221004 is an abundant number, since it is smaller than the sum of its proper divisors (1256931284).

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

1246221004 is a wasteful number, since it uses less digits than its factorization.

1246221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191265 (or 191263 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1246221004 is about 35301.8555319689. The cubic root of 1246221004 is about 1076.1307025577.

Adding to 1246221004 its reverse (4001226421), we get a palindrome (5247447425).

The spelling of 1246221004 in words is "one billion, two hundred forty-six million, two hundred twenty-one thousand, four".