2251443004 has 24 divisors (see below), whose sum is σ = 4040089200. Its totient is φ = 1097185920.

The previous prime is 2251443001. The next prime is 2251443049. The reversal of 2251443004 is 4003441522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2251443004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251443001) 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, 175687 + ... + 188065.

It is an arithmetic number, because the mean of its divisors is an integer number (168337050).

Almost surely, 2^2251443004 is an apocalyptic number.

It is an amenable number.

2251443004 is a deficient number, since it is larger than the sum of its proper divisors (1788646196).

2251443004 is a wasteful number, since it uses less digits than its factorization.

2251443004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533 (or 13531 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2251443004 is about 47449.3730622439. The cubic root of 2251443004 is about 1310.6507661525.

Adding to 2251443004 its reverse (4003441522), we get a palindrome (6254884526).

The spelling of 2251443004 in words is "two billion, two hundred fifty-one million, four hundred forty-three thousand, four".