253444041 has 18 divisors (see below), whose sum is σ = 388891022. Its totient is φ = 159022080.

The previous prime is 253444033. The next prime is 253444057. The reversal of 253444041 is 140444352.

It is a happy number.

253444041 is a `hidden beast` number, since 253 + 4 + 4 + 404 + 1 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 84548025 + 168896016 = 9195^2 + 12996^2 .

It is not a de Polignac number, because 253444041 - 2³ = 253444033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253443996 and 253444014.

It is not an unprimeable number, because it can be changed into a prime (253444091) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46120 + ... + 51321.

Almost surely, 2^253444041 is an apocalyptic number.

It is an amenable number.

253444041 is a deficient number, since it is larger than the sum of its proper divisors (135446981).

253444041 is a wasteful number, since it uses less digits than its factorization.

253444041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97481 (or 97461 counting only the distinct ones).

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

The square root of 253444041 is about 15919.9259106316. The cubic root of 253444041 is about 632.8401549030.

Adding to 253444041 its reverse (140444352), we get a palindrome (393888393).

The spelling of 253444041 in words is "two hundred fifty-three million, four hundred forty-four thousand, forty-one".