1253801404 has 12 divisors (see below), whose sum is σ = 2211430144. Its totient is φ = 621964224.

The previous prime is 1253801401. The next prime is 1253801413. The reversal of 1253801404 is 4041083521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253801401) 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, 1233549 + ... + 1234564.

Almost surely, 2^1253801404 is an apocalyptic number.

It is an amenable number.

1253801404 is a deficient number, since it is larger than the sum of its proper divisors (957628740).

1253801404 is a wasteful number, since it uses less digits than its factorization.

1253801404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468244 (or 2468242 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1253801404 is about 35409.0582196138. The cubic root of 1253801404 is about 1078.3082234833.

Adding to 1253801404 its reverse (4041083521), we get a palindrome (5294884925).

The spelling of 1253801404 in words is "one billion, two hundred fifty-three million, eight hundred one thousand, four hundred four".