2220451544 has 16 divisors (see below), whose sum is σ = 4260169320. Its totient is φ = 1084406400.

The previous prime is 2220451523. The next prime is 2220451547. The reversal of 2220451544 is 4451540222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220451547) 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, 3227057 + ... + 3227744.

Almost surely, 2^2220451544 is an apocalyptic number.

It is an amenable number.

2220451544 is a deficient number, since it is larger than the sum of its proper divisors (2039717776).

2220451544 is a wasteful number, since it uses less digits than its factorization.

2220451544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454850 (or 6454846 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2220451544 is about 47121.6674577630. The cubic root of 2220451544 is about 1304.6091897479.

Adding to 2220451544 its reverse (4451540222), we get a palindrome (6671991766).

The spelling of 2220451544 in words is "two billion, two hundred twenty million, four hundred fifty-one thousand, five hundred forty-four".