2243442501 has 20 divisors (see below), whose sum is σ = 3368351052. Its totient is φ = 1488025728.

The previous prime is 2243442479. The next prime is 2243442511. The reversal of 2243442501 is 1052443422.

It can be written as a sum of positive squares in 2 ways, for example, as 2157509601 + 85932900 = 46449^2 + 9270^2 .

It is not a de Polignac number, because 2243442501 - 2⁶ = 2243442437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243442511) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54340 + ... + 86253.

Almost surely, 2^2243442501 is an apocalyptic number.

It is an amenable number.

2243442501 is a deficient number, since it is larger than the sum of its proper divisors (1124908551).

2243442501 is a wasteful number, since it uses less digits than its factorization.

2243442501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140802 (or 140793 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2243442501 is about 47364.9923572252. The cubic root of 2243442501 is about 1309.0964577298.

Adding to 2243442501 its reverse (1052443422), we get a palindrome (3295885923).

The spelling of 2243442501 in words is "two billion, two hundred forty-three million, four hundred forty-two thousand, five hundred one".