1332220044 has 24 divisors (see below), whose sum is σ = 3121418608. Its totient is φ = 442229760.

The previous prime is 1332220037. The next prime is 1332220049. The reversal of 1332220044 is 4400222331.

It is a self number, because there is not a number n which added to its sum of digits gives 1332220044.

It is not an unprimeable number, because it can be changed into a prime (1332220049) 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, 227437 + ... + 233220.

Almost surely, 2^1332220044 is an apocalyptic number.

It is an amenable number.

1332220044 is an abundant number, since it is smaller than the sum of its proper divisors (1789198564).

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

1332220044 is a wasteful number, since it uses less digits than its factorization.

1332220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460905 (or 460903 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1332220044 is about 36499.5896415288. The cubic root of 1332220044 is about 1100.3359976338.

Adding to 1332220044 its reverse (4400222331), we get a palindrome (5732442375).

The spelling of 1332220044 in words is "one billion, three hundred thirty-two million, two hundred twenty thousand, forty-four".